This problem involves contract value, margin ratio and handling fee at the same time. For example, if the funds in the margin account are 20,000 yuan, the first-hand value of the futures contract is 20,000 yuan, the margin ratio is 10% (the leverage is 10 times), and the handling fee is 2 yuan per hand, then in this case, at most, 9 positions can be opened for the funds above 20,000 yuan.

Generally speaking, account funds can be divided by the contract value multiplied by the contract leverage ratio, and the handling fee is generally very small, ranging from tens of thousands to tens of yuan per hand, which is generally negligible.

The quotation method of general futures is how much yuan per ton, and the first-hand contract stipulates that it is 5 tons or 10 tons. For example, if the price of soybean meal is 2700 yuan/ton (the specification of soybean meal is per lot 10 ton), then if the margin is 10%, a deposit of more than 2700 yuan can be issued, and if the pta price is 5000 yuan/ton (pta) is 10%, a deposit of 2500 yuan can be issued.