## 8/1 ![](https://i.imgur.com/sREPEDK.png) 匯率反推 3399/(3000+11791) ~= 0.23 3000 * 0.23 + (298/2) + (293/2) ~= 985 ## 8/25 ![](https://i.imgur.com/oIc4kK2.png)