diff --git a/resources/assets/vue/components/companies/elements/CustomerPaymentBillingInnerComponent.vue b/resources/assets/vue/components/companies/elements/CustomerPaymentBillingInnerComponent.vue
index 19ca390a..634550da 100644
--- a/resources/assets/vue/components/companies/elements/CustomerPaymentBillingInnerComponent.vue
+++ b/resources/assets/vue/components/companies/elements/CustomerPaymentBillingInnerComponent.vue
@@ -116,9 +116,10 @@
             },
             sumAmount () {
                 var new_object = this.selectedInvoice;
-                return Object.keys(new_object).reduce(function(total, key) {
-                    return total + Math.round(new_object[key].amount * 100) / 100;
+                var total = Object.keys(new_object).reduce(function(total, key) {
+                    return total + new_object[key].amount;
                 }, 0).toFixed(2);
+                return Math.round(total * 100) / 100;
             },
             selectedIds () {
                 return this.selectedInvoice.map(s=>s.id);