You can calculate the rise and fall of partial stock funds by looking at the fund's net value announced every day. For example, yesterday it was 1 yuan, and today 1.05 means an increase of 5%. As for the specific algorithm, the calculation is based on the combined calculation and addition of the gains and losses of all stocks.

It is calculated based on the income of other financial products. This is too difficult to calculate. People calculate it by computer. For example, this fund bought 20 stocks, 10 bonds, etc. You have to calculate their income separately and then add them up. You

If you're good at math, you can still do calculations, otherwise, don't do calculations, it'll be exhausting.