Profit and loss of on-site fund = (fund selling price-fund buying price) × quantity-handling fee, in which the handling fee is mainly commission fee, which is generally about three ten thousandths of the turnover, and its standards are different according to different securities companies.

For example, if an investor buys 10000 shares when the on-site fund price is 1.5 yuan, and sells them when the net value of the fund is 2 yuan, and the commission rate is three ten thousandths, then the profit and loss of the investor trading the fund = (2-1.5) ×10000-(/.