We used Kingstar futures trading software before, and we can see the profit and loss of futures after liquidation. Now, with master Boyi trading software, you can't see the profit and loss when the futures contract is closed. So you can't see the profit and loss after the futures are closed, which is a problem with the trading software. You can look at the total assets before opening the position and look at the total assets after closing the position. The difference between the two is profit and loss.