performance issue

[johnny0213]

First I appreciate your terrific work and the decision to open source it!

I tested the cases below by your online demo, and found the answers were not right.

1. 一个借贷公司向甲借款50000元，年利率为8%（复利），借款期为3年，计算3年后需要归还的金额。
2. 假设你最近买了一只股票，但是现在它的价格下跌了20％，你需要股价上涨多少百分比才能抵消这个损失？
3. 我在银行存了一笔固定存款，一年后利息是按1%的年利率计算的，如果我选择每月领取利息，那么我最终可以得到比一次性领取利息更多的金额吗？

Please take a look at the cases and see if there is anything wrong with the model's performance.

[lemuria-wchen]

Unfortunately, the current model version may not have a sufficient understanding of mathematical problems. And there is a certain amount of noise in the data of our calculation plugin, which may have caused such problems.

[lemuria-wchen]

We are planning to further improve the diversity and accuracy of our calculation instruction dataset.