Before calculating the foreign exchange margin, we must know two values, one is the contract value and the other is the leverage. The contract value of general foreign exchange is 654.38+ 10,000, so the margin = 654.38+ 10,000× the number of traders× the current exchange rate ÷ (the exchange rate of the currency against the US dollar) leverage. For example, when operating 1, the lever is used 400 times. Margin = 65438+ million×1hand-400 = 250 USD.