Open-end funds (off-site subscription) can apply the following formula to calculate the income: net subscription amount = subscription amount? (1+ subscription rate) subscription fee = subscription amount-net subscription amount subscription share = net subscription amount? Net redemption fee of fund share on T day = redemption share? T-day fund share net value? Redemption Rate Redemption Amount = Redemption Share? Net value of fund share on T day-net profit of redemption fee = redemption amount-subscription amount