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
Lankford 99 Henderson 85 +0.4
+0.2
Li 69 Anderson 58 -0.2
Dumas 111 Burrow 82 -0.2
Ellerbe 89 Segal 90 +0.1
Etomi 74 Bersin 78 +0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Bersin 78 Lankford 84 +1.0
Etomi 62 Dumas 83 +0.1
Segal 72 Fornshell 56 -0.0
If winner is:HomeTieAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Li vs Segal+0.4-0.1-0.1
Ellerbe vs Lankford-0.1-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
101-0-0In198135,877,192
9-9.5In10016,885,248*
Total:In138752,762,440

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs