We calculate profits by the following formula:
Profit = (Closing price – Opening price) * Contract size * Contract trading volume
Closing price is a price, at which a deal was\will be closed.
Opening price is a price, at which a deal was\will be opened.
Contract size for currency pairs is 100.000 of contracts. Check the contract size for the other trading instruments in the Contract specifications.
Contact trading volume is the number of lots opened in the deal.
Example. We calculate the profit of a Buy deal for EUR/USD pair with the trading volume of 1 lot.
Opening price – 1.16810. Closing price – 1.17500. We substitute the values in the formula:
(1.17500–1.16810)*100 000*1=690
We get $690 of profit from the sought deal.
Notice that in this formula we get profit in the quoted currency. If you need to convert it to the account currency, multiply it by the current exchange rate of the account currency.