营销活动：完善 review 提到的问题，添加拼团列表查看弹窗

(cherry picked from commit 3500a20630)

src/utils/index.ts

@@ -227,15 +227,14 @@ export const convertToInteger = (num: number | string | undefined): number => {
  * 元转分
  */
 export const yuanToFen = (amount: string | number): number => {
-  return Math.round(Number(amount) * 100)
+  return convertToInteger(amount)
 }
 
 /**
  * 分转元
  */
 export const fenToYuan = (price: string | number): number => {
-  price = Number(price)
-  return (price / 100.0).toFixed(2)
+  return formatToFraction(price)
 }
 
 export const treeFormatter = (ary: any, val: string, valueField = 'value', nameField = 'label') => {