Handicap Calculation for Steve Tucker for Week 19

Week of Rounds Used:		15	14	13	12	11		Total		Average		90%		Rounded to:
Gross Score:		48	54	49	53	57		261		52.20
Hdcp Score (over Par):		12	19	12	17	18		78		15.60		14.04		14

What does this mean? How are handicaps calculated?
Handicap Projection for Steve Tucker for Week 20

If your next round score is:		Your new Handicap will be:
39-44		12
45-49		13
50-55		14
56-61		15
62-66		16