Hi, i have browsed almost all of your sites to profit/loss calculations and found many experiences sharing. good. about this profit/loss calculations spreadsheets, i have an Excel spreadsheet of 5000+ rows of continous daily future market data, buy/sell signal with buy/sell volume like sample: 2 buys and 1 sell yesterday. 3 sells and 1 buy today, and 2 buys and 1 sell tomorrow, open trade price and close trade price. at the end of the day, the volume of buy signal and volume of sell signal equal. how am i going to calculate the above buy and sell signal profit/loss in Excel? thank you.