Remember that, when performing a winning percentage calculation, ties are equal to half of a win, so they are represented by 0.5 (one half) in the formula. While our free Winning Percentage Calculator is a handy tool, you may also want to know how to perform a winning percentage calculation without a calculator. Winning percentage is crucial because it provides a standardized way to compare teams or players across different seasons or leagues, even when they’ve played a different number of games. Simply input the number of wins, losses, and draws, and click on the “Calculate” button to generate the winning percentage. With a 75.6% (.756) winning percentage, the Bulls won approximately three-quarters of the games that they played. Furthermore, if that team were to play 100 games, you could expect them to win around 76 of them.