1. After yesterday's closing price was multiplied by 10%, the stock price remained at two decimal places, so there was a rounding problem. For example, yesterday's closing price was 5.34 yuan, and today's daily limit price should be 5.34+5.34 *10% = 5.34+0.534 = 5.874 yuan, rounded off. So the actual increase you see is 9.93%, not 10%.

2. Similarly, the increment is sometimes greater than 10%, which is caused by the last digit being equal to or greater than 5 when rounding. For example, yesterday's closing price was 5.36, and today's daily limit price should be 5.36 * (1+10%) = 5.896 yuan, rounded to 5.90 yuan, then the increase from 5.36 yuan to 5.90 yuan is definitely greater than10%. Let's calculate (5.90-5.90.

600893 today's closing price is 28.39,28.39+10% = 31.22.

002085 today's closing price is 8.92,8.92+10% = 9.81.