Profit and Loss Of Currency Standard

Profit and Loss
Before settlement, users can buy and sell the swaps on their own discretion.
RPL is the profit and loss generated from closing positions.
RPL of a swap:
Open long: RPL =(1/Average Opening Price –1/ Closing Price) * Face Value * Closed Amount
E.g. User A opened 20 long BTC swaps at the Average Entry Price 5000 BTC/USD, with 100USD face value (Cont);then closed 10 swap at 10,000 BTC/USD, the RPL is then = (1/5000 - 1/10000) *100*10= 0.1BTC
Open short: RPL =(1/ Closing Price –1/ Average Opening Price) * Face Value * Closed Amount
E.g. User A opened 10 short BTC swaps at the standard settlement price 10000 BTC/USD, with the latest marked price of 5000BTC/USD, the RPL is then = (1/5000 - 1/10000)*100*10= 0.1BTC