Your algorithm If the net value of the fund unit on the day of splitting is 2 yuan, your method is correct.

Because the net worth of the previous day was actually more than that of 4 yuan, your share should be more. Only by looking at the net value of the fund on the day of the split can we know how many shares 1 has been split into. Specifically, you can check the split share on the website of the fund company.

Simple way, you can look at how much money your fund assets have. According to 1 yuan, how much money is how many shares. Because the fund split is the internal system of the fund company to recalculate the asset share, the old citizens who have already purchased do not need to pay any handling fees.

It should be the net value on the day of the split, not the net value of the previous day. Moreover, the fund share keeps two decimal places, and the rest is included in the fund assets.