Generally, a handling fee of 1.5% is charged when purchasing funds. This is called the subscription fee, so the handling fee of 3,000 yuan is 45 yuan.

When you redeem the fund, you will be charged a fee of 0.5%, which is called the redemption rate.

The income you earn from buying a fund can be calculated using the following method.

Income = principal/(1+subscription rate)/net value on subscription date*net value on redemption date*(1-redemption rate)-principal. For example, if you buy 3,000 yuan, the net value of the fund at the time of purchase is 1.000, and at the time of redemption

The net value of the fund is 1.512, then you will make a profit: 3000/(1+1.5%)/1.000*1.512*(1-0.5%)-3000=1446.62. That is, you buy 3,000 yuan. The net value of the fund at the time of purchase is 1.000. Redeem

The net value at that time is 1.512, then after deducting the handling fee, your net profit is 1446.62 yuan.