There is a formula for the calculation of fund income. Rate of return = income divided by purchase amount multiplied by100%; Income = net fund value multiplied by fund share multiplied by (1- redemption fee)-subscription amount+cash dividend.

When calculating the fund income, we should pay attention to the subscription rate, net value at the time of subscription, redemption rate and net value at the time of redemption. Only by figuring out these variables can we calculate whether the fund we subscribed for is profitable or loss.