Take A 1 10 1 as an example. The number "4 155 (assuming)" displayed in the trading software is a quotation, not a first-hand price, but a soybean meal costs 4 155 yuan, while a first-hand soybean is 10 ton, so the first-hand price is 660. Because of the futures margin system, assuming that the ratio is 10%, the required margin for primary soybeans is 41550 *10% = 4155 yuan.