... with a growth rate of 5%. If you only do 1 hand. . 1 What is the quantity of this variety stipulated in the contract? How much do you earn? For example. You buy 1 hand cotton. 5 tons of cotton. 1 ton current price is 20,000. The increment of %5 is 2 1. Then you do 1 hand. You made five thousand dollars. If I have to give you a formula. That's quite complicated. I'll try to make it simple for you. It is (the price per ton of goods multiplied by 1.05 minus the current price of the goods) multiplied by the weight of the goods in the contract = your profit. Where 1. 05 is the increase of 5% you set. The price per ton of goods refers to the example I just cited, such as the current price of cotton is 20 thousand, and then the current price of goods is subtracted. Is to figure out what the increase is. Finally, multiply by the quantity specified in this contract. This is your profit. The deposit was omitted in the middle Because the deposit is only a certain amount you need to buy this contract. To put it bluntly, it is a deposit. It has nothing to do with the rise and fall of the commodity itself. You invested 654.38+0 million. Buying 1 hand can only earn 1 hand. But how many lots can I buy at 100? This issue only involves the margin ratio. You know that.