The income of futures intermediaries comes from the handling fees generated by customers' transactions, which can be expressed by the following formula: income of futures intermediaries = transaction amount of intermediaries' customers x transaction fees x brokerage rebate ratio.

1. Broker-customer transaction amount = number of customers x average transaction amount of customers If the number of brokers-customers remains unchanged and the average transaction amount of customers = transaction amount of customers x transaction frequency remains unchanged, then it is necessary to increase the transaction amount of customers, that is, to help customers' funds grow steadily.

2. The lower the transaction fee the customer wants, the better, and the higher the broker wants.