1, the so-called profit and loss algorithm of each company may be different. The general profit and loss algorithm should be the market value of the fund currently held-investment cost.

2. You only look at the rise and fall of the net value, and it is not appropriate to calculate the profit and loss without calculating the subscription cost. The general subscription fee is about 1.5%, and this fee must be added.

3. Your net value on the second day is 1.22 1, and your holding share is 162.39. The calculated market value of the fund is 198.28, and the reference profit and loss is not-1.72.

4. The calculation according to this method is correct. You can't calculate the profit and loss according to the difference of net value, but you should also subtract the subscription fee around 3 yuan.