diff --git a/src/ATBAPP/support/CashUtils.cpp b/src/ATBAPP/support/CashUtils.cpp
index 2785e02..3943ee6 100644
--- a/src/ATBAPP/support/CashUtils.cpp
+++ b/src/ATBAPP/support/CashUtils.cpp
@@ -1,6 +1,6 @@
 #include "CashUtils.h"
 
-CashUtils::CashUtils(QObject *parent) : QObject(parent){}
+#include <QDebug>
 
 #define MAX_COINS 64
 #define MAX_NOTES 16
@@ -11,7 +11,7 @@ CashUtils::CashUtils(QObject *parent) : QObject(parent){}
 * getAllInsertedCoins(uint16_t *types, uint16_t *values)
 *       all inserted coins of this past transaction are stored, max 64
 */
-uint32_t getAmountOfInsertedCoins(hwinf* hw)
+uint32_t CashUtils::getAmountOfInsertedCoins(hwinf* hw)
 {
     uint32_t result = 0;
 
@@ -20,7 +20,7 @@ uint32_t getAmountOfInsertedCoins(hwinf* hw)
     hw->getAllInsertedCoins(types, values);
 
     for (int i = 0; i < MAX_COINS; i++) {
-        result += (types[i] * values[i]);
+        result += values[i];
     }
 
     return result;
@@ -32,43 +32,20 @@ uint32_t getAmountOfInsertedCoins(hwinf* hw)
  *
  * virtual uint8_t bna_getCurrentNotes(uint16_t latestBill, uint16_t *currentNotes) const =0;
  * returns number of collected bank notes since start-command (current transaction)
- *   latestBill: not used
- *   currentNotes[0] = last bill value
- *   currentNotes[1] = 0/1  1 if bill in escrow  0 if bill in cash box (stacker)
- *   currentNotes[2,3] = total sum of collected bills within this transaction
+ *    latestBill: last accepted bank note, value in cent
+ *    currentNotes an array with up to 16 (further) notes collected
  *
  */
-uint32_t getAmountOfInsertedNotes(hwinf* hw)
+uint32_t CashUtils::getAmountOfInsertedNotes(hwinf* hw)
 {
     uint32_t result = 0;
 
-    uint16_t currentNotes[MAX_NOTES];
-    hw->bna_getCurrentNotes(0, currentNotes);
+    uint16_t values[MAX_NOTES];
+    hw->bna_getCurrentNotes(0, values);
 
-    result = currentNotes[2] + ( currentNotes[3] >> 16);
+    for (int i = 0; i < MAX_COINS; i++) {
+        result += values[i];
+    }
 
     return result;
 }
-
-
-
-/*****************************************************************************
- * Get changer result
- *
- * virtual uint8_t changer_getChangeResult(uint32_t *returnedAmount) const =0;
- *        get result of coin dispensing
- *        receivedData[0]: 0: not yet started
- *                         1:amount returned
- *                         2:only partial return
- *                         3: no return possible
- *        receivedData[2,3,4,5]: returned amount
- *
- *  Note: to get changed amount this method must be called after changing!
- */
-
-uint32_t getAmountDueToChange(hwinf* hw)
-{
-    Q_UNUSED(hw)
-
-    return 0;
-}
diff --git a/src/ATBAPP/support/CashUtils.h b/src/ATBAPP/support/CashUtils.h
index a856821..1bfc654 100644
--- a/src/ATBAPP/support/CashUtils.h
+++ b/src/ATBAPP/support/CashUtils.h
@@ -4,20 +4,11 @@
 #include <QObject>
 #include "interfaces.h"
 
-class CashUtils : public QObject
-{
-    Q_OBJECT
+namespace CashUtils {
 
-public:
-    static uint32_t getAmountOfInsertedCoins(hwinf* hw);
-    static uint32_t getAmountOfInsertedNotes(hwinf* hw);
-    static uint32_t getAmountDueToChange(hwinf* hw);
+uint32_t getAmountOfInsertedCoins(hwinf* hw);
+uint32_t getAmountOfInsertedNotes(hwinf* hw);
 
-private:
-    explicit CashUtils(QObject *parent = nullptr);
-
-signals:
-
-};
+}
 
 #endif // CASHUTILS_H