1 commission = current price of rebar X 1 tonnage x commission rate.

= 3200x10x1%= 3.2 yuan.

The margin ratio of rebar futures is 9%, and the margin of 1 is about 2800 yuan. Calculation method:

1 hand margin = rebar current price X 1 hand tonnage x margin ratio.

=3200X 10X9%=2800 yuan.