Take rebar as an example. Now the quotation is about 3023, and the thread contract of 1 is 10 ton, so the contract unit is 10, and the margin ratio is about 13% in our Shenzhen business department of China Securities Futures.
Then the deposit of 1 hand thread is
Margin = 3023 *10 *13% = 3929 yuan.
Other varieties have the same sub-algorithm, what's not to understand?