diff --git a/app/views/origami/payments/show.html.erb b/app/views/origami/payments/show.html.erb
index 1eb547e6..490ec341 100644
--- a/app/views/origami/payments/show.html.erb
+++ b/app/views/origami/payments/show.html.erb
@@ -93,7 +93,7 @@
     <hr>
     <div class="row">
       <div class="col-md-8">Cash</div>
-      <div class="col-md-4" id="amount" ><%= @cash %></div>
+      <div class="col-md-4" id="cash" ><%= @cash %></div>
     </div>
     <hr>
     <div class="row" id="credit_payment">
@@ -193,8 +193,11 @@ $(document).on('click', '.cashier_number', function(event){
           update_balance();
         break;
         case 'del' :
-          var cash=$('#amount').text();
-          $('#cash').text(cash.substr(0,cash.length-1));
+          var cash=$('#cash').text();
+          if(cash.length == 1)
+            $('#cash').text("0.0");
+          else
+            $('#cash').text(cash.substr(0,cash.length-1));
           update_balance();
         break;
         case 'clr':
@@ -258,7 +261,7 @@ function update_balance(){
   var card = $('#others').text();
   var amount_due = $('#amount_due').text();
   var total = parseFloat(cash) + parseFloat(credit) + parseFloat(card)
-  var result = amount_due - total
+  var result = amount_due - total;
   $('#balance').text(result.toFixed(2));
 }
 </script>