Handicap Calculation for John Dunne for Week 19

Week of Rounds Used:		18	17	16	15	14		Total		Average		90%		Rounded to:
Gross Score:		43	44	42	42	44		215		43.00
Hdcp Score (over Par):		8	9	7	7	9		40		8.00		7.20		7

What does this mean? How are handicaps calculated?
Handicap Projection for John Dunne for Week 20

If your next round score is:		Your new Handicap will be:
29-34		5
35-40		6
41-45		7
46-51		8
52-56		9