The subscription principal is the net subscription amount after deducting the subscription fee, and the net subscription amount divided by the net value of the fund is the fund share of the month.
If the subscription rate of the fund remains unchanged and the subscription principal remains unchanged, then the net subscription amount remains unchanged.
That is, only the net value of the fund is changing.
Formula: net subscription amount = subscription principal /( 1+ subscription rate)
Fund Share-Net Subscription Amount/Net Fund Value