Floating profit and loss = (latest price-position price) * position quantity * direction * contract unit

Settlement gain/loss = (settlement price-position price) * position quantity * direction * contract unit

Closing profit and loss = (closing price-position price) * closing quantity * direction

Total profit and loss = floating profit and loss+ending profit and loss or settlement profit and loss+liquidation profit and loss

Net value = balance+floating profit and loss

Occupancy margin = ∑ opening price * number of positions * contract unit * margin ratio

Frozen margin = ∑ price limit * number of positions * contract unit * margin ratio

Available margin = net value-occupied margin-frozen margin

Customer risk rate = net value/occupation margin * 100%

I hope I can help you solve the problem.