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

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1212-0In1002,448
1111-1In98215,923
1010-2In84161087,753
99-3In444213100293,054
88-4100.0%62637247100659,311
77-586.7017213226112001,056,483
66-615.2002132831196101,230,768
55-70.0001826372351,053,627
44-8Out002154440658,436
33-9Out011980292,791
22-10Out049688,187
11-11Out010015,836
00-12Out1002,527
Total:39.6%56678899101011125,457,144
Games Above .500
Chance Will Make Playoffs