Your income is the current net value MINUS the net value at the time of subscription, multiplied by the fund share you hold, and then deducted the handling fee.

It has nothing to do with yesterday's unit net value, and is only used to calculate the net value growth rate, that is, (today's unit net value-yesterday's unit net value)/yesterday's unit net value = net value growth rate.

In addition, the cumulative net value refers to the cumulative unit net value since the establishment of the fund, and the formula is today's unit net value+cumulative dividend = cumulative net value.