How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 9/10100.0*Chance in playoffs100.0*Average seed
Garrett 101.58 AJ 68.34 +10.7
+0.9
Joe 78.04 Bill 68.84 -0.1
If winner is:HomeAway
Week of 9/17100.0*Chance in playoffs100.0*Average seed
Garrett vs Bill+7.0-10.8
+0.6-0.9
Justin vs AJ-0.2+0.2
Amber vs Mark-0.1+0.1

What If

Chances based on how well the Garrett finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1312-0In10018,511
1211-1In9910144,348
1110-2In92800629,021
109-3In65314001,651,910
98-4In2344266002,916,741
87-599.8%2143333153003,648,061
76-682.6003163231143003,315,457
65-717.4003143032164002,201,471
54-80.20031432341521,061,743
43-90.00005234528363,473
32-10Out02257383,299
21-11Out059511,716
10-12Out1004,073
Total:75.6%1615131211976432116,049,824
Games Above .500
Chance Will Make Playoffs