The unit of silver futures trading is 15kg/ lot, the unit of futures quotation is RMB /kg, and the minimum price change is 1 yuan /kg.
The calculation formula of profit and loss is (current price-opening price) * trading unit * number of lots, which also depends on the opening direction.
If silver futures fluctuate by one point, it is 1 yuan (RMB) /kg * 15kg/ hand * 1 hand = 15 yuan (RMB).