New SG report: About the new SG report per shot , what is IT for , what can we take from this new report ? And also we can see the percent for drive , approach etc , what does the precentage mean ?

The SG per shot is a good measure for practice (e.g., skills tests), since it measures ‘skill’ independent of the number of shots taken in a round. A player’s biggest potential gain is a shot category with a strokes gained per round (which is composed of strokes gained per shots times the number of shots per round).
The % column is the percent of shots in that category in a round.