2.

As shown above, the current price is 733 yuan per ton, and the iron ore is 100 ton per lot, which means that the first-hand value is 73,300 yuan, which is 5% of the contract. If the average futures company adds 2% on this basis, that is, the margin ratio is 7%, then the first-hand margin is 73300 * 7% = 5 1365438. As the price changes, the first-hand margin is also changing, but now it is at this level, about 5000 yuan per hand. Of course, it also depends on the margin ratio of futures companies. If it is increased, the difference will be more. Full hand code, hope to help the landlord, thank you.