In the title, available margin refers to the remaining funds after holding 3 lots of silver. Tolerable loss refers to available margin+funds after liquidation (half of margin)-a certain handling fee (1% of position margin). The maximum fluctuation refers to the price of 5907 when the tolerable loss amount is completely used up.

To put it simply, if you drop from 6200 to 5907, you will lose all, and 10W will become 0. Among these losses, in addition to the loss caused by the price difference, there is also a little loss of handling fees.