Net subscription amount = subscription amount ÷( 1+ subscription rate); Subscription fee = subscription amount-net subscription amount; Subscription share = net subscription amount ÷ net value of fund share on T day;

Redemption fee = redemption share × net value of fund share on T day × redemption rate; Redemption amount = redemption share × net value of fund share on T day-redemption fee;

Net profit = redemption amount-subscription amount.

2. For example, the net value of the fund bought by 1 10,000 yuan is 5. 123, the net value at the time of redemption is 5.42 1 yuan, the subscription rate is 1.5%, and the redemption rate is 0.5%. What is its income?

Revenue =10000/(1+1.5%)/5.123 * 5.421* (1-0.5%)-/kloc.