Binance #在合约交易中不知不觉中偷走我的钱

See the picture for details. After the last contract was completed, the system ledger indicated a loss of 234.72U. I checked the position record several times and only lost 195.49U. Where did the missing 39.23U go? Yesterday, I lost 5 U and they are nowhere to be found.

Can anyone explain this?