diff --git a/src/addresscombo.cpp b/src/addresscombo.cpp
index f7cbeee..5ba4955 100644
--- a/src/addresscombo.cpp
+++ b/src/addresscombo.cpp
@@ -24,16 +24,16 @@ void AddressCombo::setCurrentText(const QString& text) {
     }
 } 
 
-void AddressCombo::addItem(const QString& text, double bal) {
+void AddressCombo::addItem(const QString& text, CAmount bal) {
     QString txt = AddressBook::addLabelToAddress(text);
-    if (bal > 0)
-        txt = txt % "(" % Settings::getZECDisplayFormat(bal) % ")";
+    if (bal.toqint64() > 0)
+        txt = txt % "(" % bal.toDecimalZECString() % ")";
         
     QComboBox::addItem(txt);
 }
 
-void AddressCombo::insertItem(int index, const QString& text, double bal) {
+void AddressCombo::insertItem(int index, const QString& text, CAmount bal) {
     QString txt = AddressBook::addLabelToAddress(text) % 
-                    "(" % Settings::getZECDisplayFormat(bal) % ")";
+                    "(" % bal.toDecimalZECString() % ")";
     QComboBox::insertItem(index, txt);
 }
\ No newline at end of file
diff --git a/src/addresscombo.h b/src/addresscombo.h
index 8088906..ee1c8ed 100644
--- a/src/addresscombo.h
+++ b/src/addresscombo.h
@@ -1,6 +1,7 @@
 #ifndef ADDRESSCOMBO_H
 #define ADDRESSCOMBO_H
 
+#include "camount.h"
 #include "precompiled.h"
 
 class AddressCombo : public QComboBox 
@@ -12,8 +13,8 @@ public:
     QString     itemText(int i);
     QString     currentText();
 
-    void        addItem(const QString& itemText, double bal);
-    void        insertItem(int index, const QString& text, double bal = 0.0);
+    void        addItem(const QString& itemText, CAmount bal);
+    void        insertItem(int index, const QString& text, CAmount bal = CAmount::fromqint64(0));
 
 public slots:
     void setCurrentText(const QString& itemText);
diff --git a/src/balancestablemodel.cpp b/src/balancestablemodel.cpp
index 353e2e4..da02f78 100644
--- a/src/balancestablemodel.cpp
+++ b/src/balancestablemodel.cpp
@@ -1,6 +1,7 @@
 #include "balancestablemodel.h"
 #include "addressbook.h"
 #include "settings.h"
+#include "camount.h"
 
 
 BalancesTableModel::BalancesTableModel(QObject *parent)
@@ -8,7 +9,7 @@ BalancesTableModel::BalancesTableModel(QObject *parent)
 }
 
 void BalancesTableModel::setNewData(const QList<QString> zaddrs, const QList<QString> taddrs,
-    const QMap<QString, qint64> balances, const QList<UnspentOutput> outputs)
+    const QMap<QString, CAmount> balances, const QList<UnspentOutput> outputs)
 {    
     loading = false;
 
@@ -22,7 +23,7 @@ void BalancesTableModel::setNewData(const QList<QString> zaddrs, const QList<QSt
 
     // Process the address balances into a list
     delete modeldata;
-    modeldata = new QList<std::tuple<QString, qint64>>();
+    modeldata = new QList<std::tuple<QString, CAmount>>();
     std::for_each(balances.keyBegin(), balances.keyEnd(), [=] (auto keyIt) {
         modeldata->push_back(std::make_tuple(keyIt, balances.value(keyIt)));
     });
@@ -30,13 +31,13 @@ void BalancesTableModel::setNewData(const QList<QString> zaddrs, const QList<QSt
     // Add all addresses that have no balances as well
     for (auto zaddr: zaddrs) {
         if (!balances.contains(zaddr)) {
-            modeldata->push_back(std::make_tuple(zaddr, 0));
+            modeldata->push_back(std::make_tuple(zaddr, CAmount::fromqint64(0)));
         }
     }
 
     for (auto taddr: taddrs) {
         if (!balances.contains(taddr)) {
-            modeldata->push_back(std::make_tuple(taddr, 0));
+            modeldata->push_back(std::make_tuple(taddr, CAmount::fromqint64(0)));
         }
     }
 
@@ -101,14 +102,14 @@ QVariant BalancesTableModel::data(const QModelIndex &index, int role) const
     if (role == Qt::DisplayRole) {
         switch (index.column()) {
         case 0: return AddressBook::addLabelToAddress(std::get<0>(modeldata->at(index.row())));
-        case 1: return Settings::getZECDisplayFormat(std::get<1>(modeldata->at(index.row())));
+        case 1: return std::get<1>(modeldata->at(index.row())).toDecimalZECString();
         }
     }
 
     if(role == Qt::ToolTipRole) {
         switch (index.column()) {
         case 0: return AddressBook::addLabelToAddress(std::get<0>(modeldata->at(index.row())));
-        case 1: return Settings::getUSDFromZecAmount(std::get<1>(modeldata->at(index.row())));
+        case 1: return std::get<1>(modeldata->at(index.row())).toDecimalZECString();
         }
     }
     
diff --git a/src/balancestablemodel.h b/src/balancestablemodel.h
index 6c1782b..de01eb0 100644
--- a/src/balancestablemodel.h
+++ b/src/balancestablemodel.h
@@ -3,6 +3,7 @@
 
 #include "precompiled.h"
 #include "datamodel.h"
+#include "camount.h"
 
 class BalancesTableModel : public QAbstractTableModel
 {
@@ -10,7 +11,7 @@ public:
     BalancesTableModel(QObject* parent);
     ~BalancesTableModel();
 
-    void setNewData(const QList<QString> zaddrs, const QList<QString> taddrs, const QMap<QString, qint64> balances, const QList<UnspentOutput> outputs);
+    void setNewData(const QList<QString> zaddrs, const QList<QString> taddrs, const QMap<QString, CAmount> balances, const QList<UnspentOutput> outputs);
 
     int rowCount(const QModelIndex &parent) const;
     int columnCount(const QModelIndex &parent) const;
@@ -18,7 +19,7 @@ public:
     QVariant headerData(int section, Qt::Orientation orientation, int role) const;
 
 private:
-    QList<std::tuple<QString, qint64>>*    modeldata        = nullptr;    
+    QList<std::tuple<QString, CAmount>>*    modeldata        = nullptr;    
     QList<UnspentOutput>*                  unspentOutputs   = nullptr;  
 
     bool loading = true;
diff --git a/src/camount.cpp b/src/camount.cpp
new file mode 100644
index 0000000..c8cd723
--- /dev/null
+++ b/src/camount.cpp
@@ -0,0 +1,61 @@
+#include "camount.h"
+#include "settings.h"
+
+#include "precompiled.h"
+
+const int NUMPLACES = 8;
+const qint64 COIN = 100000000;
+
+double CAmount::toDecimalDouble() const {
+    return static_cast<double>(this->amount) / COIN;
+}
+
+QString CAmount::toDecimalString() const {
+    if (amount < 0) {
+        CAmount negative(-1 * this->amount);
+        return "-" + negative.toDecimalString();
+    }
+
+    int wholePart = amount / COIN;
+    int decimalPart = amount % COIN;
+
+    QString r = QString::number(wholePart);
+    if (decimalPart > 0) {
+        QString decimalPartStr = QString::number(decimalPart);
+        QString leadingZeros = QString("0").repeated(NUMPLACES - decimalPartStr.length());
+
+        r = r + "." + leadingZeros + decimalPartStr;
+    }
+
+    return r;
+}
+
+QString CAmount::toDecimalUSDString() const {
+    double dblAmount = static_cast<double>(this->amount) / COIN;
+    double price = Settings::getInstance()->getZECPrice();
+
+    return "$" + QLocale(QLocale::English).toString(dblAmount*price, 'f', 2);
+}
+
+QString CAmount::toDecimalZECString() const {
+    return this->toDecimalString() % " " % Settings::getTokenName();
+}
+
+QString CAmount::toDecimalZECUSDString() const {
+    auto usdString = this->toDecimalUSDString();
+    if (!usdString.isEmpty())
+        return this->toDecimalZECString() % " (" % usdString % ")";
+    else
+        return this->toDecimalZECString();
+}
+
+CAmount CAmount::fromDecimalString(QString decimalString) {
+    auto amtParts = decimalString.split(".");
+    qint64 r = amtParts[0].toULongLong() * COIN;
+    if (amtParts.length() == 2) {
+        auto trailingZeros = QString("0").repeated(NUMPLACES - amtParts[1].length());
+        r += QString(amtParts[1] + trailingZeros).toULongLong();
+    }
+
+    return CAmount(r);
+}
\ No newline at end of file
diff --git a/src/camount.h b/src/camount.h
new file mode 100644
index 0000000..d81eef0
--- /dev/null
+++ b/src/camount.h
@@ -0,0 +1,47 @@
+#ifndef CAMOUNT_H
+#define CAMOUNT_H
+
+
+class CAmount {
+private:
+    CAmount(qint64 amount) {
+        this->amount = amount;
+    }
+
+    qint64 amount;
+
+public:
+    static CAmount fromDecimalString(QString decimalString);
+    static CAmount fromqint64(qint64 a) {
+        return CAmount(a);
+    }
+
+    CAmount() : amount(0) {};
+    CAmount(const CAmount&) = default;
+    ~CAmount() = default;
+
+    double  toDecimalDouble() const;
+    QString toDecimalString() const;
+    QString toDecimalUSDString() const;
+    QString toDecimalZECString() const;
+    QString toDecimalZECUSDString() const;
+    qint64  toqint64() const { return amount; };
+
+    CAmount operator+ (const CAmount& other) const {
+        return CAmount(this->amount + other.amount);
+    }  
+
+    CAmount operator- (const CAmount& other) const {
+        return CAmount(this->amount - other.amount);
+    }
+
+    bool operator< (const CAmount& other) const {
+        return this->amount < other.amount;
+    }
+
+    bool operator> (const CAmount& other) const {
+        return this->amount > other.amount;
+    }
+};
+
+#endif // CAMOUNT_H
diff --git a/src/controller.cpp b/src/controller.cpp
index f46d306..4e0c53f 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -3,6 +3,7 @@
 #include "addressbook.h"
 #include "settings.h"
 #include "version.h"
+#include "camount.h"
 #include "websockets.h"
 
 using json = nlohmann::json;
@@ -91,18 +92,12 @@ void Controller::fillTxJsonParams(json& allRecepients, Tx tx) {
         // Construct the JSON params
         json rec = json::object();
         rec["address"]      = toAddr.addr.toStdString();
-        rec["amount"]       = toAddr.amount;
+        rec["amount"]       = toAddr.amount.toqint64();
         if (Settings::isZAddress(toAddr.addr) && !toAddr.memo.trimmed().isEmpty())
             rec["memo"]     = toAddr.memo.toStdString();
 
         allRecepients.push_back(rec);
     }
-
-    // // Add fees if custom fees are allowed.
-    // if (Settings::getInstance()->getAllowCustomFees()) {
-    //     params.push_back(1); // minconf
-    //     params.push_back(tx.fee);
-    // }
 }
 
 
@@ -115,7 +110,7 @@ void Controller::noConnection() {
     main->ui->statusBar->showMessage(QObject::tr("No Connection"), 1000);
 
     // Clear balances table.
-    QMap<QString, qint64> emptyBalances;
+    QMap<QString, CAmount> emptyBalances;
     QList<UnspentOutput>  emptyOutputs;
     QList<QString>        emptyAddresses;
     balancesTableModel->setNewData(emptyAddresses, emptyAddresses, emptyBalances, emptyOutputs);
@@ -254,20 +249,21 @@ void Controller::updateUI(bool anyUnconfirmed) {
 };
 
 // Function to process reply of the listunspent and z_listunspent API calls, used below.
-void Controller::processUnspent(const json& reply, QMap<QString, qint64>* balancesMap, QList<UnspentOutput>* unspentOutputs) {
+void Controller::processUnspent(const json& reply, QMap<QString, CAmount>* balancesMap, QList<UnspentOutput>* unspentOutputs) {
     auto processFn = [=](const json& array) {        
         for (auto& it : array) {
             QString qsAddr  = QString::fromStdString(it["address"]);
             int block       = it["created_in_block"].get<json::number_unsigned_t>();
             QString txid    = QString::fromStdString(it["created_in_txid"]);
-            QString amount  = Settings::getDecimalString(it["value"].get<json::number_unsigned_t>());
+            CAmount amount  = CAmount::fromqint64(it["value"].get<json::number_unsigned_t>());
 
             bool spendable = it["unconfirmed_spent"].is_null() && it["spent"].is_null();    // TODO: Wait for 4 confirmations
             bool pending   = !it["unconfirmed_spent"].is_null();
 
             unspentOutputs->push_back(UnspentOutput{ qsAddr, txid, amount, block, spendable, pending });
             if (spendable) {
-                (*balancesMap)[qsAddr] = (*balancesMap)[qsAddr] + it["value"].get<json::number_unsigned_t>();
+                (*balancesMap)[qsAddr] = (*balancesMap)[qsAddr] +
+                                         CAmount::fromqint64(it["value"].get<json::number_unsigned_t>());
             }
         }
     };
@@ -284,26 +280,26 @@ void Controller::refreshBalances() {
 
     // 1. Get the Balances
     zrpc->fetchBalance([=] (json reply) {    
-        auto balT      = reply["tbalance"].get<json::number_unsigned_t>();
-        auto balZ      = reply["zbalance"].get<json::number_unsigned_t>();
-        auto balTotal  = balT + balZ;
+        CAmount balT      = CAmount::fromqint64(reply["tbalance"].get<json::number_unsigned_t>());
+        CAmount balZ      = CAmount::fromqint64(reply["zbalance"].get<json::number_unsigned_t>());
+        CAmount balTotal  = balT + balZ;
 
         AppDataModel::getInstance()->setBalances(balT, balZ);
 
-        ui->balSheilded   ->setText(Settings::getZECDisplayFormat(balZ));
-        ui->balTransparent->setText(Settings::getZECDisplayFormat(balT));
-        ui->balTotal      ->setText(Settings::getZECDisplayFormat(balTotal));
-
+        ui->balSheilded   ->setText(balZ.toDecimalZECString());
+        ui->balTransparent->setText(balT.toDecimalZECString());
+        ui->balTotal      ->setText(balTotal.toDecimalZECString());
 
-        ui->balSheilded   ->setToolTip(Settings::getZECDisplayFormat(balZ));
-        ui->balTransparent->setToolTip(Settings::getZECDisplayFormat(balT));
-        ui->balTotal      ->setToolTip(Settings::getZECDisplayFormat(balTotal));
+        auto price = Settings::getInstance()->getZECPrice();
+        ui->balSheilded   ->setToolTip(balZ.toDecimalZECUSDString());
+        ui->balTransparent->setToolTip(balT.toDecimalZECUSDString());
+        ui->balTotal      ->setToolTip(balTotal.toDecimalZECUSDString());
     });
 
     // 2. Get the UTXOs
     // First, create a new UTXO list. It will be replacing the existing list when everything is processed.
     auto newUnspentOutputs = new QList<UnspentOutput>();
-    auto newBalances = new QMap<QString, qint64>();
+    auto newBalances = new QMap<QString, CAmount>();
 
     // Call the Transparent and Z unspent APIs serially and then, once they're done, update the UI
     zrpc->fetchUnspent([=] (json reply) {
@@ -334,7 +330,7 @@ void Controller::refreshTransactions() {
 
         for (auto& it : reply.get<json::array_t>()) {  
             QString address;
-            qint64 total_amount = 0;
+            CAmount total_amount = CAmount::fromqint64(0);
             QList<TransactionItemDetail> items;
 
             // First, check if there's outgoing metadata
@@ -342,7 +338,9 @@ void Controller::refreshTransactions() {
             
                 for (auto o: it["outgoing_metadata"].get<json::array_t>()) {
                     QString address = QString::fromStdString(o["address"]);
-                    qint64 amount = -1 * o["value"].get<json::number_unsigned_t>(); // Sent items are -ve
+                    
+                    // Sent items are -ve
+                    CAmount amount = CAmount::fromqint64(-1 * o["value"].get<json::number_unsigned_t>()); 
                     
                     QString memo;
                     if (!o["memo"].is_null()) {
@@ -350,7 +348,7 @@ void Controller::refreshTransactions() {
                     }
 
                     items.push_back(TransactionItemDetail{address, amount, memo});
-                    total_amount += amount;
+                    total_amount = total_amount + amount;
                 }
 
                 if (items.length() == 1) {
@@ -374,7 +372,7 @@ void Controller::refreshTransactions() {
 
                 items.push_back(TransactionItemDetail{
                     address,
-                    it["amount"].get<json::number_integer_t>(),
+                    CAmount::fromqint64(it["amount"].get<json::number_integer_t>()),
                     ""
                 });
 
diff --git a/src/controller.h b/src/controller.h
index d896b62..79f8b4f 100644
--- a/src/controller.h
+++ b/src/controller.h
@@ -3,6 +3,7 @@
 
 #include "precompiled.h"
 
+#include "camount.h"
 #include "datamodel.h"
 #include "balancestablemodel.h"
 #include "txtablemodel.h"
@@ -20,14 +21,6 @@ struct WatchedTx {
     std::function<void(QString, QString)> error;
 };
 
-struct MigrationStatus {
-    bool            available;     // Whether the underlying zcashd supports migration?
-    bool            enabled;
-    QString         saplingAddress;
-    double          unmigrated;
-    double          migrated;
-    QList<QString>  txids;
-};
 
 class Controller
 {
@@ -78,7 +71,7 @@ private:
 
     void refreshTransactions();    
 
-    void processUnspent     (const json& reply, QMap<QString, qint64>* newBalances, QList<UnspentOutput>* newUnspentOutputs);
+    void processUnspent     (const json& reply, QMap<QString, CAmount>* newBalances, QList<UnspentOutput>* newUnspentOutputs);
     void updateUI           (bool anyUnconfirmed);
 
     void getInfoThenRefresh(bool force);
diff --git a/src/datamodel.cpp b/src/datamodel.cpp
index 60990c4..e043466 100644
--- a/src/datamodel.cpp
+++ b/src/datamodel.cpp
@@ -7,7 +7,7 @@ DataModel::DataModel() {
     QWriteLocker locker(lock);
 
     utxos = new QList<UnspentOutput>();
-    balances = new QMap<QString, qint64>();
+    balances = new QMap<QString, CAmount>();
     usedAddresses = new QMap<QString, bool>();
     zaddresses = new QList<QString>();
     taddresses = new QList<QString>();
@@ -44,7 +44,7 @@ void DataModel::replaceTaddresses(QList<QString>* newT) {
     taddresses = newT;
 }
 
-void DataModel::replaceBalances(QMap<QString, qint64>* newBalances) {
+void DataModel::replaceBalances(QMap<QString, CAmount>* newBalances) {
     QWriteLocker locker(lock);
     Q_ASSERT(newBalances);
 
diff --git a/src/datamodel.h b/src/datamodel.h
index 00ad43c..1068d41 100644
--- a/src/datamodel.h
+++ b/src/datamodel.h
@@ -1,13 +1,14 @@
 #ifndef DATAMODEL_H
 #define DATAMODEL_H
 
+#include "camount.h"
 #include "precompiled.h"
 
 
 struct UnspentOutput {
     QString address;
     QString txid;
-    QString amount;    
+    CAmount amount;    
     int     blockCreated;
     bool    spendable;
     bool    pending;
@@ -19,7 +20,7 @@ class DataModel {
 public:
     void replaceZaddresses(QList<QString>* newZ);
     void replaceTaddresses(QList<QString>* newZ);
-    void replaceBalances(QMap<QString, qint64>* newBalances);
+    void replaceBalances(QMap<QString, CAmount>* newBalances);
     void replaceUTXOs(QList<UnspentOutput>* utxos);
 
     void markAddressUsed(QString address);
@@ -30,7 +31,7 @@ public:
     const QList<QString>             getAllZAddresses()     { QReadLocker locker(lock); return *zaddresses; }
     const QList<QString>             getAllTAddresses()     { QReadLocker locker(lock); return *taddresses; }
     const QList<UnspentOutput>       getUTXOs()             { QReadLocker locker(lock); return *utxos; }
-    const QMap<QString, qint64>      getAllBalances()       { QReadLocker locker(lock); return *balances; }
+    const QMap<QString, CAmount>     getAllBalances()       { QReadLocker locker(lock); return *balances; }
     const QMap<QString, bool>        getUsedAddresses()     { QReadLocker locker(lock); return *usedAddresses; }
 
 
@@ -40,7 +41,7 @@ private:
     int latestBlock;
 
     QList<UnspentOutput>*   utxos           = nullptr;
-    QMap<QString, qint64>*  balances        = nullptr;
+    QMap<QString, CAmount>* balances        = nullptr;
     QMap<QString, bool>*    usedAddresses   = nullptr;
     QList<QString>*         zaddresses      = nullptr;
     QList<QString>*         taddresses      = nullptr;
diff --git a/src/liteinterface.h b/src/liteinterface.h
index 062c321..67cc782 100644
--- a/src/liteinterface.h
+++ b/src/liteinterface.h
@@ -3,6 +3,7 @@
 
 #include "precompiled.h"
 
+#include "camount.h"
 #include "connection.h"
 
 using json = nlohmann::json;
@@ -11,7 +12,7 @@ using json = nlohmann::json;
 // into a struct with address, amount, memo
 struct TransactionItemDetail {
     QString         address;
-    qint64          amount;
+    CAmount         amount;
     QString         memo;
 };
 
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index fbcfadc..a8ed3ce 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -438,7 +438,7 @@ void MainWindow::payZcashURI(QString uri, QString myAddr) {
 
     ui->Address1->setText(paymentInfo.addr);
     ui->Address1->setCursorPosition(0);
-    ui->Amount1->setText(Settings::getDecimalString(paymentInfo.amt.toDouble()));
+    ui->Amount1->setText(paymentInfo.amt);
     ui->MemoTxt1->setText(paymentInfo.memo);
 
     // And switch to the send tab.
@@ -982,7 +982,7 @@ void MainWindow::setupReceiveTab() {
         }
         
         ui->rcvLabel->setText(label);
-        ui->rcvBal->setText(Settings::getZECUSDDisplayFormat(rpc->getModel()->getAllBalances().value(addr)));
+        ui->rcvBal->setText(rpc->getModel()->getAllBalances().value(addr).toDecimalZECUSDString());
         ui->txtReceive->setPlainText(addr);       
         ui->qrcodeDisplay->setQrcodeString(addr);
         if (rpc->getModel()->getUsedAddresses().value(addr, false)) {
@@ -1073,7 +1073,7 @@ void MainWindow::updateTAddrCombo(bool checked) {
             // If the address is in the address book, add it. 
             if (labels.contains(taddr) && !addrs.contains(taddr)) {
                 addrs.insert(taddr);
-                ui->listReceiveAddresses->addItem(taddr, 0);
+                ui->listReceiveAddresses->addItem(taddr, CAmount::fromqint64(0));
             }
         });
 
@@ -1084,7 +1084,7 @@ void MainWindow::updateTAddrCombo(bool checked) {
             if (!addrs.contains(addr))  {
                 addrs.insert(addr);
                 // Balance is zero since it has not been previously added
-                ui->listReceiveAddresses->addItem(addr, 0);
+                ui->listReceiveAddresses->addItem(addr, CAmount::fromqint64(0));
             }
         }
 
@@ -1101,7 +1101,7 @@ void MainWindow::updateTAddrCombo(bool checked) {
         // 5. Add a last, disabled item if there are remaining items
         if (allTaddrs.size() > addrs.size()) {
             auto num = QString::number(allTaddrs.size() - addrs.size());
-            ui->listReceiveAddresses->addItem("-- " + num + " more --", 0);
+            ui->listReceiveAddresses->addItem("-- " + num + " more --", CAmount::fromqint64(0));
 
             QStandardItemModel* model = qobject_cast<QStandardItemModel*>(ui->listReceiveAddresses->model());
             QStandardItem* item =  model->findItems("--", Qt::MatchStartsWith)[0];
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 6250cea..6b1aafd 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -17,7 +17,7 @@ using json = nlohmann::json;
 // Struct used to hold destination info when sending a Tx. 
 struct ToFields {
     QString addr;
-    qint64  amount;
+    CAmount amount;
     QString memo;
 };
 
@@ -25,7 +25,7 @@ struct ToFields {
 struct Tx {
     QString         fromAddr;
     QList<ToFields> toAddrs;
-    qint64          fee;
+    CAmount         fee;
 };
 
 namespace Ui {
diff --git a/src/requestdialog.cpp b/src/requestdialog.cpp
index 352a757..cd88309 100644
--- a/src/requestdialog.cpp
+++ b/src/requestdialog.cpp
@@ -73,7 +73,8 @@ void RequestDialog::showPaymentConfirmation(MainWindow* main, QString paymentURI
     req.txtFrom->setText(payInfo.addr);
     req.txtMemo->setPlainText(payInfo.memo);
     req.txtAmount->setText(payInfo.amt);
-    req.txtAmountUSD->setText(Settings::getUSDFromZecAmount(req.txtAmount->text().toDouble()));
+    CAmount amount = CAmount::fromDecimalString(req.txtAmount->text());
+    req.txtAmountUSD->setText(amount.toDecimalUSDString());
 
     req.buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Pay"));
 
@@ -112,9 +113,11 @@ void RequestDialog::showRequestZcash(MainWindow* main) {
     // Amount textbox
     req.txtAmount->setValidator(main->getAmountValidator());
     QObject::connect(req.txtAmount, &QLineEdit::textChanged, [=] (auto text) {
-        req.txtAmountUSD->setText(Settings::getUSDFromZecAmount(text.toDouble()));
+        CAmount amount = CAmount::fromDecimalString(text);
+        req.txtAmountUSD->setText(amount.toDecimalUSDString());
     });
-    req.txtAmountUSD->setText(Settings::getUSDFromZecAmount(req.txtAmount->text().toDouble()));
+    CAmount amount = CAmount::fromDecimalString(req.txtAmount->text());
+    req.txtAmountUSD->setText(amount.toDecimalUSDString());
 
     req.txtMemo->setAcceptButton(req.buttonBox->button(QDialogButtonBox::Ok));
     req.txtMemo->setLenDisplayLabel(req.lblMemoLen);
@@ -124,8 +127,9 @@ void RequestDialog::showRequestZcash(MainWindow* main) {
 
     if (d.exec() == QDialog::Accepted) {
         // Construct a zcash Payment URI with the data and pay it immediately.
+        CAmount amount = CAmount::fromDecimalString(req.txtAmount->text());
         QString memoURI = "zcash:" + req.cmbMyAddress->currentText()
-                    + "?amt=" + Settings::getDecimalString(req.txtAmount->text().toDouble())
+                    + "?amt=" + amount.toDecimalString()
                     + "&memo=" + QUrl::toPercentEncoding(req.txtMemo->toPlainText());
 
         QString sendURI = "zcash:" + AddressBook::addressFromAddressLabel(req.txtFrom->text()) 
diff --git a/src/sendtab.cpp b/src/sendtab.cpp
index 4187993..5547554 100644
--- a/src/sendtab.cpp
+++ b/src/sendtab.cpp
@@ -61,15 +61,17 @@ void MainWindow::setupSendTab() {
     // Fee amount changed
     ui->minerFeeAmt->setReadOnly(true);
     QObject::connect(ui->minerFeeAmt, &QLineEdit::textChanged, [=](auto txt) {
-        ui->lblMinerFeeUSD->setText(Settings::getUSDFromZecAmount(txt.toDouble()));
+        CAmount fee = CAmount::fromDecimalString(txt);
+        ui->lblMinerFeeUSD->setText(fee.toDecimalUSDString());
     });
-    ui->minerFeeAmt->setText(Settings::getDecimalString(Settings::getMinerFee()));    
+    ui->minerFeeAmt->setText(Settings::getMinerFee().toDecimalString());    
 
      // Set up focus enter to set fees
     QObject::connect(ui->tabWidget, &QTabWidget::currentChanged, [=] (int pos) {
         if (pos == 1) {
             QString txt = ui->minerFeeAmt->text();
-            ui->lblMinerFeeUSD->setText(Settings::getUSDFromZecAmount(txt.toDouble()));
+            QString feeUSD = CAmount::fromDecimalString(txt).toDecimalUSDString();
+            ui->lblMinerFeeUSD->setText(feeUSD);
         }
     });
     
@@ -167,67 +169,15 @@ void MainWindow::updateLabelsAutoComplete() {
 }
 
 void MainWindow::setDefaultPayFrom() {
-    auto findMax = [=] (QString startsWith) {
-        double max_amt = 0;
-        int    idx     = -1;
-
-        for (int i=0; i < ui->inputsCombo->count(); i++) {
-            auto addr = ui->inputsCombo->itemText(i);
-            if (addr.startsWith(startsWith)) {
-                auto amt = rpc->getModel()->getAllBalances().value(addr);
-                if (max_amt < amt) {
-                    max_amt = amt;
-                    idx = i;
-                }
-            }                
-        }
-
-        return idx;
-    };
-
-    // By default, select the z-address with the most balance from the inputs combo
-    auto maxZ = findMax("z");
-    if (maxZ >= 0) {
-        ui->inputsCombo->setCurrentIndex(maxZ);                
-    } else {
-        auto maxT = findMax("t");
-        maxT  = maxT >= 0 ? maxT : 0;
-        ui->inputsCombo->setCurrentIndex(maxT);
-    }
+    
 };
 
 void MainWindow::updateFromCombo() {
-    if (!rpc)
-        return;
-
-    auto lastFromAddr = ui->inputsCombo->currentText();
-
-    ui->inputsCombo->clear();
-    auto i = rpc->getModel()->getAllBalances().constBegin();
-
-    // Add all the addresses into the inputs combo box
-    while (i != rpc->getModel()->getAllBalances().constEnd()) {
-        ui->inputsCombo->addItem(i.key(), i.value());
-        if (i.key() == lastFromAddr) ui->inputsCombo->setCurrentText(i.key());
-
-        ++i;
-    }
-
-    if (lastFromAddr.isEmpty()) {
-        setDefaultPayFrom();
-    }
-    else {
-        ui->inputsCombo->setCurrentText(lastFromAddr);
-    }
+    // delete
 }
 
 void MainWindow::inputComboTextChanged(int index) {
-    auto addr   = ui->inputsCombo->itemText(index);
-    auto bal    = rpc->getModel()->getAllBalances().value(addr);
-    auto balFmt = Settings::getZECDisplayFormat(bal);
-
-    ui->sendAddressBalance->setText(balFmt);
-    ui->sendAddressBalanceUSD->setText(Settings::getUSDFromZecAmount(bal));
+    // delete
 }
 
     
@@ -340,7 +290,8 @@ void MainWindow::addressChanged(int itemNumber, const QString& text) {
 
 void MainWindow::amountChanged(int item, const QString& text) {
     auto usd = ui->sendToWidgets->findChild<QLabel*>(QString("AmtUSD") % QString::number(item));
-    usd->setText(Settings::getUSDFromZecAmount(text.toDouble()));
+    CAmount amt = CAmount::fromDecimalString(text);
+    usd->setText(amt.toDecimalUSDString());
 
     // If there is a recurring payment, update the info there as well
     if (sendTxRecurringInfo != nullptr) {
@@ -434,7 +385,7 @@ void MainWindow::clearSendForm() {
     setMemoEnabled(1, false);
 
     // Reset the fee
-    ui->minerFeeAmt->setText(Settings::getDecimalString(Settings::getMinerFee()));
+    ui->minerFeeAmt->setText(Settings::getMinerFee().toDecimalString());
 
     // Start the deletion after the first item, since we want to keep 1 send field there all there
     for (int i=1; i < totalItems; i++) {
@@ -461,24 +412,24 @@ void MainWindow::maxAmountChecked(int checked) {
         if (rpc == nullptr) return;
            
         // Calculate maximum amount
-        double sumAllAmounts = 0.0;
+        CAmount sumAllAmounts = CAmount::fromqint64(0);
         // Calculate all other amounts
         int totalItems = ui->sendToWidgets->children().size() - 2;   // The last one is a spacer, so ignore that        
         // Start counting the sum skipping the first one, because the MAX button is on the first one, and we don't
         // want to include it in the sum. 
         for (int i=1; i < totalItems; i++) {
             auto amt  = ui->sendToWidgets->findChild<QLineEdit*>(QString("Amount")  % QString::number(i+1));
-            sumAllAmounts += amt->text().toDouble();
+            sumAllAmounts = sumAllAmounts + CAmount::fromDecimalString(amt->text());
         }
 
-        sumAllAmounts += Settings::getMinerFee();
+        sumAllAmounts = sumAllAmounts + Settings::getMinerFee();
         
         auto addr = ui->inputsCombo->currentText();
 
         auto maxamount  = rpc->getModel()->getAllBalances().value(addr) - sumAllAmounts;
-        maxamount       = (maxamount < 0) ? 0 : maxamount;
+        maxamount       = (maxamount.toqint64() < 0) ? CAmount::fromqint64(0) : maxamount;
             
-        ui->Amount1->setText(Settings::getDecimalString(maxamount));
+        ui->Amount1->setText(maxamount.toDecimalString());
     } else if (checked == Qt::Unchecked) {
         // Just remove the readonly part, don't change the content
         ui->Amount1->setReadOnly(false);
@@ -494,7 +445,7 @@ Tx MainWindow::createTxFromSendPage() {
 
     // For each addr/amt in the sendTo tab
     int totalItems = ui->sendToWidgets->children().size() - 2;   // The last one is a spacer, so ignore that        
-    qint64 totalAmt = 0;
+    CAmount totalAmt = CAmount::fromqint64(0);
     for (int i=0; i < totalItems; i++) {
         QString addr = ui->sendToWidgets->findChild<QLineEdit*>(QString("Address") % QString::number(i+1))->text().trimmed();
         // Remove label if it exists
@@ -506,15 +457,15 @@ Tx MainWindow::createTxFromSendPage() {
         }        
 
         bool ok;
-        qint64 amt;
+        CAmount amt;
         
         // Make sure it parses
         amtStr.toDouble(&ok);
         if (!ok) {
-            amt = -1;
+            amt = CAmount::fromqint64(-1);
         } else {
-            amt = Settings::getAmountFromUserDecimalStr(amtStr);
-            totalAmt += amt;
+            amt = CAmount::fromDecimalString(amtStr);
+            totalAmt = totalAmt + amt;
         }
         
         QString memo = ui->sendToWidgets->findChild<QLabel*>(QString("MemoTxt")  % QString::number(i+1))->text().trimmed();
@@ -587,7 +538,7 @@ bool MainWindow::confirmTx(Tx tx, RecurringPaymentInfo* rpi) {
     
     // For each addr/amt/memo, construct the JSON and also build the confirm dialog box    
     int row = 0;
-    double totalSpending = 0;
+    CAmount totalSpending = CAmount::fromqint64(0);
 
     for (int i=0; i < tx.toAddrs.size(); i++) {
         auto toAddr = tx.toAddrs[i];
@@ -605,15 +556,15 @@ bool MainWindow::confirmTx(Tx tx, RecurringPaymentInfo* rpi) {
             // Amount (ZEC)
             auto Amt = new QLabel(confirm.sendToAddrs);
             Amt->setObjectName(QString("Amt") % QString::number(i + 1));
-            Amt->setText(Settings::getZECDisplayFormat(toAddr.amount));
+            Amt->setText(toAddr.amount.toDecimalZECString());
             Amt->setAlignment(Qt::AlignRight | Qt::AlignTrailing | Qt::AlignVCenter);
             confirm.gridLayout->addWidget(Amt, row, 1, 1, 1);
-            totalSpending += toAddr.amount;
+            totalSpending = totalSpending + toAddr.amount;
 
             // Amount (USD)
             auto AmtUSD = new QLabel(confirm.sendToAddrs);
             AmtUSD->setObjectName(QString("AmtUSD") % QString::number(i + 1));
-            AmtUSD->setText(Settings::getUSDFromZecAmount(toAddr.amount));
+            AmtUSD->setText(toAddr.amount.toDecimalUSDString());
             AmtUSD->setAlignment(Qt::AlignRight | Qt::AlignTrailing | Qt::AlignVCenter);
             confirm.gridLayout->addWidget(AmtUSD, row, 2, 1, 1);            
 
@@ -655,8 +606,8 @@ bool MainWindow::confirmTx(Tx tx, RecurringPaymentInfo* rpi) {
         minerFee->setObjectName(QStringLiteral("minerFee"));
         minerFee->setAlignment(Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter);
         confirm.gridLayout->addWidget(minerFee, row, 1, 1, 1);
-        minerFee->setText(Settings::getZECDisplayFormat(tx.fee));
-        totalSpending += tx.fee;
+        minerFee->setText(tx.fee.toDecimalZECString());
+        totalSpending = totalSpending + tx.fee;
 
         auto minerFeeUSD = new QLabel(confirm.sendToAddrs);
         QSizePolicy sizePolicy1(QSizePolicy::Minimum, QSizePolicy::Preferred);
@@ -664,7 +615,7 @@ bool MainWindow::confirmTx(Tx tx, RecurringPaymentInfo* rpi) {
         minerFeeUSD->setObjectName(QStringLiteral("minerFeeUSD"));
         minerFeeUSD->setAlignment(Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter);
         confirm.gridLayout->addWidget(minerFeeUSD, row, 2, 1, 1);
-        minerFeeUSD->setText(Settings::getUSDFromZecAmount(tx.fee));
+        minerFeeUSD->setText(tx.fee.toDecimalUSDString());
     }
 
     // Recurring payment info, show only if there is exactly one destination address
@@ -683,9 +634,9 @@ bool MainWindow::confirmTx(Tx tx, RecurringPaymentInfo* rpi) {
     confirm.sendFrom->setText(fnSplitAddressForWrap(tx.fromAddr));
     confirm.sendFrom->setFont(fixedFont);    
     QString tooltip = tr("Current balance      : ") +
-        Settings::getZECUSDDisplayFormat(rpc->getModel()->getAllBalances().value(tx.fromAddr));
+        rpc->getModel()->getAllBalances().value(tx.fromAddr).toDecimalZECUSDString();
     tooltip += "\n" + tr("Balance after this Tx: ") +
-        Settings::getZECUSDDisplayFormat(rpc->getModel()->getAllBalances().value(tx.fromAddr) - totalSpending);
+        (rpc->getModel()->getAllBalances().value(tx.fromAddr) - totalSpending).toDecimalZECUSDString();
     confirm.sendFrom->setToolTip(tooltip);
 
     // Show the dialog and submit it if the user confirms
@@ -769,13 +720,12 @@ QString MainWindow::doSendTxValidations(Tx tx) {
 
         // This technically shouldn't be possible, but issue #62 seems to have discovered a bug
         // somewhere, so just add a check to make sure. 
-        if (toAddr.amount < 0) {
+        if (toAddr.amount.toqint64() < 0) {
             return QString(tr("Amount for address '%1' is invalid!").arg(toAddr.addr));
         }
     }
 
-
-    return QString();
+    return "";
 }
 
 void MainWindow::cancelButton() {
diff --git a/src/settings.cpp b/src/settings.cpp
index d9b1183..68ddcaf 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1,5 +1,6 @@
 #include "mainwindow.h"
 #include "settings.h"
+#include "camount.h"
 
 Settings* Settings::instance = nullptr;
 
@@ -178,66 +179,6 @@ void Settings::openTxInExplorer(QString txid) {
 }
 
 
-
-QString Settings::getUSDFormat(double usdAmt) {
-    return "$" + QLocale(QLocale::English).toString(usdAmt, 'f', 2);
-}
-
-
-QString Settings::getUSDFromZecAmount(qint64 bal) {
-    return getUSDFormat(bal * Settings::getInstance()->getZECPrice());
-}
-
-QString Settings::getDecimalString(qint64 amt) {
-    if (amt < 0) {
-        return "-" + Settings::getDecimalString(-1 * amt);
-    }
-
-    // Zcash has 8 decimal places
-    int places = Settings::getNumberOfDecimalPlaces();
-    qint64 divider = QString("1" + QString("0").repeated(places)).toULongLong();
-
-    int wholePart = amt / divider;
-    int decimalPart = amt % divider;
-
-    QString r = QString::number(wholePart);
-    if (decimalPart > 0) {
-        QString decimalPartStr = QString::number(decimalPart);
-        QString leadingZeros = QString("0").repeated(places - decimalPartStr.length());
-
-        r = r + "." + leadingZeros + decimalPartStr;
-    }
-
-    return r;
-}
-
-qint64 Settings::getAmountFromUserDecimalStr(QString amt) {
-    int places = Settings::getNumberOfDecimalPlaces();
-    qint64 divider = QString("1" + QString("0").repeated(places)).toULongLong();
-
-    auto amtParts = amt.split(".");
-    qint64 r = amtParts[0].toULongLong() * divider;
-    if (amtParts.length() == 2) {
-        auto trailingZeros = QString("0").repeated(places - amtParts[1].length());
-        r += QString(amtParts[1] + trailingZeros).toULongLong();
-    }
-
-    return r;
-}
-
-QString Settings::getZECDisplayFormat(qint64 bal) {
-    // This is idiotic. Why doesn't QString have a way to do this?
-    return getDecimalString(bal) % " " % Settings::getTokenName();
-}
-
-QString Settings::getZECUSDDisplayFormat(qint64 bal) {
-    auto usdFormat = getUSDFromZecAmount(bal);
-    if (!usdFormat.isEmpty())
-        return getZECDisplayFormat(bal) % " (" % usdFormat % ")";
-    else
-        return getZECDisplayFormat(bal);
-}
-
 const QString Settings::txidStatusMessage = QString(QObject::tr("Tx submitted (right click to copy) txid:"));
 
 QString Settings::getTokenName() {
@@ -256,8 +197,8 @@ QString Settings::getDonationAddr() {
 
 }
 
-double Settings::getMinerFee() {
-    return 10000;
+CAmount Settings::getMinerFee() {
+    return CAmount::fromqint64(10000);
 }
 
 bool Settings::isValidSaplingPrivateKey(QString pk) {
@@ -282,7 +223,8 @@ bool Settings::isValidAddress(QString addr) {
 
 // Get a pretty string representation of this Payment URI
 QString Settings::paymentURIPretty(PaymentURI uri) {
-    return QString() + "Payment Request\n" + "Pay: " + uri.addr + "\nAmount: " + getZECDisplayFormat(uri.amt.toDouble()) 
+    CAmount amount = CAmount::fromDecimalString(uri.amt);
+    return QString() + "Payment Request\n" + "Pay: " + uri.addr + "\nAmount: " + amount.toDecimalZECString() 
         + "\nMemo:" + QUrl::fromPercentEncoding(uri.memo.toUtf8());
 }
 
diff --git a/src/settings.h b/src/settings.h
index a3d1d8c..e9b14dd 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -2,6 +2,7 @@
 #define SETTINGS_H
 
 #include "precompiled.h"
+#include "camount.h"
 
 struct Config {
     QString server;
@@ -80,20 +81,11 @@ public:
     static bool    isZAddress(QString addr);
     static bool    isTAddress(QString addr);
 
-    static QString getDecimalString(qint64 zecamt);
-    static QString getUSDFormat(double usdAmt);
-
-    static QString getUSDFromZecAmount(qint64 zecamt);
-    static QString getZECDisplayFormat(qint64 zecamt);
-    static QString getZECUSDDisplayFormat(qint64 bal);
-
-    static qint64  getAmountFromUserDecimalStr(QString amt);
-
     static QString getTokenName();
     static QString getDonationAddr();
 
     static QString getDefaultServer();
-    static double  getMinerFee();
+    static CAmount getMinerFee();
 
     static int     getMaxMobileAppTxns() { return 30; }
 
diff --git a/src/txtablemodel.cpp b/src/txtablemodel.cpp
index af389b0..c7e10ee 100644
--- a/src/txtablemodel.cpp
+++ b/src/txtablemodel.cpp
@@ -105,11 +105,11 @@ bool TxTableModel::exportToCsv(QString fileName) const {
         case Column::Confirmations: return QString::number(dat.confirmations);
         case Column::Amount: {
             // Sum up all the amounts
-            qint64 total = 0;
+            CAmount total = CAmount::fromqint64(0);
             for (int i=0; i < dat.items.length(); i++) {
-                total += dat.items[i].amount;
+                total = total + dat.items[i].amount;
             }
-            return Settings::getZECDisplayFormat(total);
+            return total.toDecimalZECString();
         }
         }
     } 
@@ -141,11 +141,11 @@ bool TxTableModel::exportToCsv(QString fileName) const {
         case Column::Confirmations: return QString("%1 Network Confirmations").arg(QString::number(dat.confirmations));
         case Column::Amount: {
             // Sum up all the amounts
-            qint64 total = 0;
+            CAmount total = CAmount::fromqint64(0);
             for (int i=0; i < dat.items.length(); i++) {
-                total += dat.items[i].amount;
+                total = total + dat.items[i].amount;
             }
-            return Settings::getInstance()->getUSDFromZecAmount(total);
+            return total.toDecimalUSDString();
         }    
         }
     }
@@ -237,9 +237,9 @@ QString TxTableModel::getType(int row) const {
 QString TxTableModel::getAmt(int row) const {
     auto dat = modeldata->at(row);
     
-    qint64 total = 0;
+    CAmount total = CAmount::fromqint64(0);
     for (int i=0; i < dat.items.length(); i++) {
-        total += dat.items[i].amount;
+        total = total + dat.items[i].amount;
     }
-    return Settings::getDecimalString(total);
+    return total.toDecimalString();
 }
diff --git a/src/viewalladdresses.cpp b/src/viewalladdresses.cpp
index 0a7d06d..bd2ce3e 100644
--- a/src/viewalladdresses.cpp
+++ b/src/viewalladdresses.cpp
@@ -1,4 +1,5 @@
 #include "viewalladdresses.h"
+#include "camount.h"
 #include "settings.h"
 
 ViewAllAddressesModel::ViewAllAddressesModel(QTableView *parent, QList<QString> taddrs, Controller* rpc)
@@ -22,7 +23,7 @@ QVariant ViewAllAddressesModel::data(const QModelIndex &index, int role) const {
     if (role == Qt::DisplayRole) {
         switch(index.column()) {
             case 0: return address;
-            case 1: return rpc->getModel()->getAllBalances().value(address, 0.0);
+            case 1: return rpc->getModel()->getAllBalances().value(address, CAmount::fromqint64(0)).toDecimalString();
         }
     }
     return QVariant();
diff --git a/src/websockets.cpp b/src/websockets.cpp
index 5bf8edb..b8600f6 100644
--- a/src/websockets.cpp
+++ b/src/websockets.cpp
@@ -658,9 +658,9 @@ void AppDataServer::processSendTx(QJsonObject sendTx, MainWindow* mainwindow, st
     tx.fee = Settings::getMinerFee();
 
     // Find a from address that has at least the sending amout
-    qint64 amt = Settings::getAmountFromUserDecimalStr(sendTx["amount"].toString());
+    CAmount amt = CAmount::fromDecimalString(sendTx["amount"].toString());
     auto allBalances = mainwindow->getRPC()->getModel()->getAllBalances();
-    QList<QPair<QString, double>> bals;
+    QList<QPair<QString, CAmount>> bals;
     for (auto i : allBalances.keys()) {
         // Filter out sprout addresses
         if (Settings::getInstance()->isSproutAddress(i))
@@ -669,7 +669,7 @@ void AppDataServer::processSendTx(QJsonObject sendTx, MainWindow* mainwindow, st
         if (allBalances.value(i) < amt)
             continue;
 
-        bals.append(QPair<QString, double>(i, allBalances.value(i)));
+        bals.append(QPair<QString, CAmount>(i, allBalances.value(i)));
     }
 
     if (bals.isEmpty()) {
@@ -677,7 +677,7 @@ void AppDataServer::processSendTx(QJsonObject sendTx, MainWindow* mainwindow, st
         return;
     }
 
-    std::sort(bals.begin(), bals.end(), [=](const QPair<QString, double>a, const QPair<QString, double> b) -> bool {
+    std::sort(bals.begin(), bals.end(), [=](const QPair<QString, CAmount>a, const QPair<QString, CAmount> b) -> bool {
         // Sort z addresses first
         return a.first > b.first;
     });
@@ -736,8 +736,8 @@ void AppDataServer::processGetInfo(QJsonObject jobj, MainWindow* mainWindow, std
     }
 
     // Max spendable safely from a z address and from any address
-    double maxZSpendable = 0;
-    double maxSpendable = 0;
+    CAmount maxZSpendable = CAmount::fromqint64(0);
+    CAmount maxSpendable = CAmount::fromqint64(0);
     for (auto a : mainWindow->getRPC()->getModel()->getAllBalances().keys()) {
         if (Settings::getInstance()->isSaplingAddress(a)) {
             if (mainWindow->getRPC()->getModel()->getAllBalances().value(a) > maxZSpendable) {
@@ -751,14 +751,14 @@ void AppDataServer::processGetInfo(QJsonObject jobj, MainWindow* mainWindow, std
 
     setConnectedName(connectedName);
 
-    auto r = QJsonDocument(QJsonObject{
+    auto r = QJsonDocument(QJsonObject {
         {"version", 1.0},
         {"command", "getInfo"},
         {"saplingAddress", mainWindow->getRPC()->getDefaultSaplingAddress()},
         {"tAddress", mainWindow->getRPC()->getDefaultTAddress()},
-        {"balance", AppDataModel::getInstance()->getTotalBalance()},
-        {"maxspendable", maxSpendable},
-        {"maxzspendable", maxZSpendable},
+        {"balance", AppDataModel::getInstance()->getTotalBalance().toDecimalDouble()},
+        {"maxspendable", maxSpendable.toDecimalDouble()},
+        {"maxzspendable", maxZSpendable.toDecimalDouble()},
         {"tokenName", Settings::getTokenName()},
         {"zecprice", Settings::getInstance()->getZECPrice()},
         {"serverversion", QString(APP_VERSION)}
diff --git a/src/websockets.h b/src/websockets.h
index 4758f1c..6483f42 100644
--- a/src/websockets.h
+++ b/src/websockets.h
@@ -3,6 +3,7 @@
 
 #include "precompiled.h"
 
+#include "camount.h"
 #include "mainwindow.h"
 #include "ui_mobileappconnector.h"
 
@@ -151,11 +152,11 @@ public:
         return instance;
     }
 
-    double getTBalance()     { return balTransparent;  }
-    double getZBalance()     { return balShielded; }
-    double getTotalBalance() { return balTotal; }
+    CAmount getTBalance()     { return balTransparent;  }
+    CAmount getZBalance()     { return balShielded; }
+    CAmount getTotalBalance() { return balTotal; }
 
-    void   setBalances(double transparent, double shielded) {
+    void    setBalances(CAmount transparent, CAmount shielded) {
         balTransparent = transparent;
         balShielded = shielded;
         balTotal = balTransparent + balShielded;
@@ -164,9 +165,9 @@ public:
 private:
     AppDataModel() = default;   // Private, for singleton
 
-    double balTransparent;
-    double balShielded;
-    double balTotal;
+    CAmount balTransparent;
+    CAmount balShielded;
+    CAmount balTotal;
 
     QString saplingAddress;
 
diff --git a/zecwallet-lite.pro b/zecwallet-lite.pro
index 50ec246..a169c1a 100644
--- a/zecwallet-lite.pro
+++ b/zecwallet-lite.pro
@@ -60,7 +60,8 @@ SOURCES += \
     src/viewalladdresses.cpp \
     src/datamodel.cpp \
     src/controller.cpp \
-    src/liteinterface.cpp 
+    src/liteinterface.cpp \
+    src/camount.cpp
 
 HEADERS += \
     src/firsttimewizard.h \
@@ -88,6 +89,7 @@ HEADERS += \
     src/datamodel.h \
     src/controller.h \
     src/liteinterface.h \
+    src/camount.h \
     lib/zecwalletlitelib.h 
 
 FORMS += \
@@ -110,7 +112,7 @@ FORMS += \
     src/recurringdialog.ui \
     src/newrecurring.ui \
     src/requestdialog.ui \
-    src/recurringmultiple.ui
+    src/recurringmultiple.ui 
 
 
 TRANSLATIONS = res/zec_qt_wallet_es.ts \