How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Fornshell 91 Singer 81 Out
-0.7
Lankford 99 Henderson 85 +0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Singer 112 Henderson 101 +0.7
Segal 72 Fornshell 56 +0.0
Ellerbe 72 Anderson 62 +0.0
If winner is:HomeTieAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Singer vs Etomi+1.1+1.1-0.5
Burrow vs Fornshell+0.2+0.5-0.2
Bersin vs Anderson+0.1+0.1-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
51-0-0Out33541315,229,877
4.50-0-1Out315414527,244
40-1-0Out594137,005,319
Total:Out1016452952,762,440
Games Above .500
Chance Will Make Playoffs