Player Efficiency Rating (PER) is a statistic that measures a player's overall efficiency. It takes into account both positive statistics such as field goals, free throws, 3-pointers, assists, rebounds, blocks, and steals, and negative ones such as missed shots, turnovers, and personal fouls. The league-average PER is set to 15.00 every season.
Formula: PER = (uPER * (15 / lg_uPER))
where uPER is the unadjusted PER, and lg_uPER is the league-average uPER.