Buy a fund of 20 thousand yuan,

Handling fee is 20000* 1.5%=300 yuan (subscription rate 1.5%).

The actual money purchased from the fund is 20000-300= 19700 yuan.

When purchasing the Fund, the net value of the Fund on that day was 1.00 10.

Number of copies purchased =19700/1.0010 =19680.31copy (two decimal places are reserved and the rest are omitted).

If it has been held for some time, the current net value is 1.0070.

Now the redemption amount is19680.31*1.0070 =19818.07 yuan.

The redemption fee is19818.07 * 0.5% = 99.09 yuan (the redemption rate is 0.5%).

In the end, the money you get is19818.07-99.09 =19718.98 yuan.

In this way, when the net value of your fund is redeemed from 1.00 10 to 1.0070, you have already lost more than 200 yuan.