This should be calculated by yourself, because the price changes in real time, and the margin ratio of each futures company is different, and everyone is different. Margin = contract value * margin ratio. Take silver futures as an example: the current price of gold 17 12 contract is 3700 yuan/kg, and the primary price is 15 kg. If the margin ratio is 13%, then the primary gold futures need: 3700 * 15 * 13% = 770.