The price of buying first-hand futures wheat is 2 1 13 yuan. If it falls by 3%, how much will it lose!
2 1 13*0.03* 10=633.9
Actually, due to the margin system, although the price of 1 ton is 2 1 13 yuan, 2 1 13 yuan bought 10 ton in the futures market. So you actually lost 3% of 10 ton, which means you lost 30% of the total.