For example, apples cost two yuan a catty, and you bought five catties for ten yuan, right? Then your share is five.
The same is true of funds. The net value of the fund is equivalent to a catty of apples, and how much money is constantly fluctuating. If apples go up by 3 yuan a catty, then the 5 kilograms of apples in your hand will become 15 yuan, and the fund share will be the same as that of apples. The unit price is how much you buy, that is, the net value of the fund will change.