This statistic measures a team's mix of rushing plays compared to passing plays. It is calculated by dividing the total number of plays in a game by the total number of rushing plays in a game. The rush percentage plus the pass percentage should equal 100%.
The NFL has become a pass friendly league, so the average rush percentage has gone down over time. However, the rushing game is still important in every game, so a coach must be sure he is mixing in enough rushing plays to keep the opposition on their toes. A team averages about 50-60 plays per game, and lately, about 15-25 rushes per game. In theory, coaches try to keep it as close to a 50-50 split as possible, but with the athleticism of modern players and the proven success of a heavy passing game, the rush percentage per game has crept down to approximately 40%.