There are a few ways this is done, though most are obscure. The "efficiency" stat found on NBA/WNBA stat pages takes the difference into account, sort of:
PTS + REB + AST + STL + BLK - FG missed - FT missed - TO
A more direct way is "effective field goal percentage," which is easy to calculate: (FG + 0.5
× 3P) / FGA where FG is total field goals made and 3p is 3 point field goals made. The effective field goal percentage of KML last year was 65.7%.
And there's an even more obscure stat called "true shooting percentage" that also takes free throws into account: PTS / (2
×(FGA+0.44
×FTA)). Though I don't know if that 0.44 constant is meaningful across all levels of basketball.