There is no upper limit. Some 1 yuan funds have risen to 7 yuan and will rise in the future. The formula for calculating the net fund value is that the net fund value is equal to the net fund asset value or the total fund share. The cumulative net value of the fund is the sum of the net value of the fund and the amount of dividends, and its calculation formula is: the cumulative net value is equal to the net value of the fund unit plus all dividends after the establishment of the fund.