For 250 trading days every year, the profit is calculated as simple profit of 0.02 * 250 = 5; According to the compound interest calculation, the profit is 250th power of 1.02, which is about 14 1 times.

If it is simple interest, simple interest is the next day's income or based on the principal, not on the first day's income+principal. Then the annual income is 2%*365 days. If it is compound interest, 2% of the income of the day is based on the principal+the income of the previous day. Then the annual income is (1+2%) to the 365th power. The result of simple interest is 730%, and the result of compound interest is 1377%.

Formula case

The calculation formula of simple interest is:

Interest (I)= principal (P)× interest rate (i)× number of interest-bearing periods (n)

Example: An enterprise has an interest-bearing promissory note with a face value of 65,438+0 and 4% in 200 yuan and coupon rate. The issue date is1June 5, the maturity date is1August 4 (60 days in total), and the interest due is:

I= 1200×4%×60/360=8 (yuan)

When calculating interest, unless otherwise specified, the interest rate given refers to the annual interest rate. Less than one year's interest, one year is equal to 360 days.

Reference to the above content: Baidu Encyclopedia-Li Chan