The main expenses in futures trading are margin and handling fee. The deposit is used to trade contracts, and the handling fee is the handling fee paid when trading contracts.
The handling fees of different trading varieties in the futures market are different, and the collection methods are also different.
For example, some charge a fixed amount, only a few dollars per lot, or more than 0.0 1% of the transaction amount, one-way charge, no charge for closing positions, then the handling fee will not be deducted.
If it is a two-way charge, it will be liquidated without making a few dollars, and the handling fee will be reduced or even become a loss.