I have 1 column of dates and 1 column of 'wins' recording 1 and -1 as wins and losses. I need a quick way to tally the score across each date (so I can graph the win-rates). Eg. 5th May 7 wins, 6th may -2 wins, etc. I have multiple entries for each date and several days to work through so I can't do it manually. What would be the simplest approach/formula to solve this issue?
I'm working in Google Sheets. If someone has a simple workaround in Excel too, the solution is welcome.