diff --git a/src/admin/components/CombineInput.vue b/src/admin/components/CombineInput.vue
index 927b488a35..9ad2173f24 100644
--- a/src/admin/components/CombineInput.vue
+++ b/src/admin/components/CombineInput.vue
@@ -83,7 +83,7 @@
                     };
 
                 this.$emit('change', data);
-            }, 300 ),
+            }, 500 ),
         },
         computed:{
             getCurrencySymbol() {
diff --git a/src/admin/components/Fields/WithdrawCharges.vue b/src/admin/components/Fields/WithdrawCharges.vue
index 2563adfc9e..ea54bdf19d 100644
--- a/src/admin/components/Fields/WithdrawCharges.vue
+++ b/src/admin/components/Fields/WithdrawCharges.vue
@@ -54,8 +54,8 @@ export default {
     methods: {
         formatValue( data ) {
             return {
-                fixed: Math.abs( data.fixed ),
-                percentage: Math.abs( data.percentage )
+                fixed: Math.abs( data.fixed ) ? Math.abs( data.fixed ) : 0,
+                percentage: Math.abs( data.percentage ) ? Math.abs( data.percentage ) : 0
             };
         },
         isSwitchOptionChecked( optionKey ) {