Therefore, the daily increase is 2%, and after 240 trading days, the increase is about 11,488.87 \%.The following is to calculate the increase of 240 trading days according to the daily increase of 2%, and calculate it through the calculator, 1.02 {240} \ approximate 115.8887.Therefore, the daily increase is 2%, and after 240 trading days, the increase is about 11,488.87 \%.
We can use the formula for calculating the final value of compound interest to calculate the final increase under this continuous growth situation. The following are the specific steps:Therefore, the daily increase is 2%, and after 240 trading days, the increase is about 11,488.87 \%.\end{align*}