The transaction amount multiplied by the commission rate. The securities handling fee is calculated according to the sum of commission/transaction amount, and the fee is equal to the transaction amount multiplied by the commission rate. Let's give a simple example: suppose an investor buys 2000 copies of a fund in the market, the transaction price is 3 yuan, and the commission rate is three ten thousandths, then the formalities fee he needs to pay for buying the fund is = 2000× 3× 3/10000 =1.8 yuan.