A friend wants to trade contracts and asked me what he should pay attention to. He said he has 1000u, uses 800u to trade contracts, and 200u to play around. I told him that when trading contracts, he must enable the rebate for transaction fees. My friend asked if it's really necessary to care about that small amount of fees. I was speechless at that moment. I roughly calculated for him that with this 1000u, how much he would spend on fees in a month.

Assuming he opens two trades a day, averaging at 20x leverage, and using 1000u, the fees would be calculated at around 0.04%. The opening fee would be 8u, and the closing fee would be 8u, so for one open and one close, it would be 16u. With two trades a day, that's 32u, leading to a monthly fee expenditure of 960u, almost the same as his principal. And this is just with a small leverage, in the case of two trades a day.

I’ve provided a method to check the fee expenditures below, you can check how much you've spent on fees, and it might surprise you. Many of my friends have lost money due to transaction fees. So it’s crucial to enable the rebate!