Fixed Custom Charge Dialog

WarpDrinkApp/app/src/main/java/ms/warpzone/warppay/manager/MainManager.java

@@ -143,8 +143,7 @@ public class MainManager {
 
     public void chargeAmount(BigDecimal amount) {
         User currentUser = this.dataManager.getCurrentUser();
-
-        if(amount.compareTo(new BigDecimal(0)) < 0 || amount.precision() > 2) {
+        if(amount.compareTo(new BigDecimal(0)) < 0 || amount.scale() > 2) {
             UiManager.getInstance().showWarning("Fehlerhafter Betrag angegeben.",4000);
             return;
         }