toFixed

@@ -347,7 +347,7 @@ function coupon(count, orderInfo, orderComputeData) {
         info: ''
     };
 
-    let couponAmount = _.get(orderComputeData, 'coupon_amount', false);
+    let couponAmount = _.get(orderComputeData, 'coupon_amount', 0);
 
     if (_.get(orderInfo, 'usable_usual_code', null)) {
         coupons.selectedAmount++;