Investors can see the rate of return by looking at the accumulated income of the fund after making profits every day, but the accumulated income refers to the income generated by all funds in the fund account, including all the parts bought and sold during the holding period, rather than the income of a single fund.

If investors want to know the rate of return of a single fund, they can calculate it manually after making a profit. Fund yield = (income/principal) * 100%, fund yield = (current fund net value-net value at the time of fund purchase) * quantity.