Handicap Calculation for Dave Adams for Week 19

Week of Rounds Used:		15	14	11	9	8		Total		Average		90%		Rounded to:
Gross Score:		49	44	49	45	45		232		46.40
Hdcp Score (over Par):		14	9	12	10	10		55		11.00		9.90		10

What does this mean? How are handicaps calculated?
Handicap Projection for Dave Adams for Week 20

If your next round score is:		Your new Handicap will be:
32-37		8
38-42		9
43-48		10
49-53		11
54-59		12