Handicap Calculation for Bill Muth for Week 19

Week of Rounds Used:		18	17	16	15	13		Total		Average		90%		Rounded to:
Gross Score:		36	36	37	40	43		192		38.40
Hdcp Score (over Par):		1	1	2	5	7		16		3.20		2.88		3

What does this mean? How are handicaps calculated?
Handicap Projection for Bill Muth for Week 20

If your next round score is:		Your new Handicap will be:
29-34		1
35-39		2
40-45		3
46-50		4
51-56		5