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 +2.0
+0.6
Ellerbe 89 Segal 90 +0.7
Li 69 Anderson 58 -0.7
-0.1
Dumas 111 Burrow 82 -0.7
Etomi 74 Bersin 78 -0.2
-0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Bersin 78 Lankford 84 +1.0
Segal 72 Fornshell 56 -0.1
Etomi 62 Dumas 83 +0.1
Burrow 76 Li 89 -0.1
If winner is:HomeTieAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Li vs Segal+0.2-0.2-0.2
Ellerbe vs Lankford-0.2-0.2+0.2

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
101-0-0In44567,912,256
9-9.5In1008,067,232*
Total:In227815,979,488

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs