If I trade any USD base currency pair like USD/CHF and USD/JPY, the pipe value is based on the right hand side of the pair. No matter USD/XXX goes up or down. The value per pipe is different to my entry level. I would like to know how to calculate my P&L correctly at my target level. Say my account is USD based and I go long with USD/CHF at 1.2100. If the rate go up 10% to 1.3300, then CHF/USD will go down from 0.8264 to 0.7513. Is that my P&L is just that simple to time the change of pipes to CHF/USD at the moment I exit my position? So if I do go long with USD/XXX , I earn slower but loss faster. Then what's the advantage to trade that over XXX/USD position?