If a fund falls by 30 points, it needs to rise by 60 points to recover the funds. The formula for calculating the rising rate of return is: rising rate of return =1(1-loss rate)-1, that is, when the investor loses 30%, the rising rate of return = 1/( 1-).

When investors invest in funds at a loss, investors can reduce the cost by adding positions. The lower the cost, the greater the probability of investors returning to their capital. Investors are generally advised to add positions in batches.