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How much is the handling fee for ICBC paper crude oil?

The handling fee of ICBC's paper crude oil is the price difference, but it is still relatively high. Bian Xiao tried to make it himself, and the price difference reached 2 yuan/barrel. If calculated by 200 barrels per hand, the cost will reach 2*200=400 yuan, and the maximum fluctuation of crude oil in one day is 10, so the profit is10 * 200 = 2,000 yuan, and the cost will account for 20%. (Spot crude oil can be recovered about 0.6 points, and the cost is 120 yuan, accounting for 6%).