Binance cheating money, refund

Everyone look at this picture, system's, 480 cost price long order, 320 current price, loss of 32%, 10,000u lost 3,200u

But my order lost 50%, isn't this outright fraud?

If I was short at 320, and it rose to 480, that would be a 50% loss, but I am long at 480, now at 320, a loss of 160 divided by 480, I still understand the most basic math, what about Binance, do they think we are fools? Come out and explain #美国加征关税