Handicap Calculation for Brett Levy for Week 19

Week of Rounds Used:		18	17	16	15	14		Total		Average		90%		Rounded to:
Gross Score:		48	49	49	42	44		232		46.40
Hdcp Score (over Par):		12	12	13	7	8		52		10.40		9.36		9

What does this mean? How are handicaps calculated?
Handicap Projection for Brett Levy for Week 20

If your next round score is:		Your new Handicap will be:
28-32		7
33-38		8
39-43		9
44-49		10
50-54		11