TS% = True Shooting Percentage

This gives you a measure of the points you’re scoring vs the number of shots taken from both the field and free throw line. The free throw line is slightly downgraded because it is a higher percentage but uncontested shot.
2015-16 NBA Leader (min 70 games): Steph Curry, Golden State 66.9%

    eFG% = Effective Field Goal Percentage

Three points shots are worth one point more but are generally a lower percentage shot. This gives the three point shot the appropriate weight in order to show how you’re truly shooting when you’re making more three point shots.
2015-16 NBA Leader (min 70 games): DeAndre Jordan, LA Clippers 70.3%

    ORB% = Offensive Rebound Percentage

The percentage of available offensive rebounds grabbed by a player while he/she was on the floor.
2015-16 NBA Leader (min 70 games): Enes Kanter, Oklahoma City 16.8%

    DRB% = Defensive Rebound Percentage

The percentage of available defensive rebounds grabbed by a player while he/she was on the floor
2015-16 NBA Leader (min 70 games): Andre Drummond, Detroit 34.3%

    TRB% = Total Rebound Percentage

The percentage of available rebounds grabbed by a player while he/she was on the floor.
2015-16 NBA Leader (min 70 games): Andre Drummond, Detroit 24.4%

    AST% = Assist Percentage

The percentage of all field goal attempts a player assisted on while he/she was on the floor.
2015-16 NBA Leader (min 70 games): Chris Paul 49.3%

    STL% = Steal Percentage

The percentage of team’s steals that a player has while on the court.
2015-16 NBA Leader (min 70 games): Ricky Rubio, Minnesota 39.1%

    BLK% = Block Percentage

The percentage of opponent two-point FGA blocked by this player while he/she was on the floor.
2015-16 NBA Leader (min 70 games): Hassan Whiteside, Miami 74.5%

    TOV% = Turnover Percentage

An estimate of turnovers per 100 plays
2015-16 NBA Leader (min 70 games): Tayshaun Prince, Memphis 6.7%

    USG% = Usage Percentage

An estimate of the percentage of team plays used where the player contributed in some way while he/she was on the floor.
2015-16 NBA Leader (min 70 games): James Harden, Houston 32.5%

    Efficiency

Computes the overall value of players by factoring in points, rebounds, assists, steals and blocks and discounting missed shots, missed free throws and turnovers.
2015-16 NBA Leader (min 70 games): Steph Curry, Golden State 31.5