How are these numbers calculated?

Big Games

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

Week of 11/4100.0*Chance in playoffs100.0*Average seed
Dre 72.6 Andrew 102.9 -19.5
-0.9
Carlos 67.7 Dan 103.4 -5.2
-0.3
Richard 118.4 Jeff 72.5 +2.3
+0.1
Frank 48.2 Sam 79.6 -2.2
-0.1
Omar 75.8 Dorff 104.9 +0.8
+0.2
Mully 136.8 Rick 91.3 -0.5
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Dan 88.6 Jeff 140.2 +1.7
-0.2
Carlos 96.8 Dre 67.2 -1.6
-0.2
Sam 61.4 Richard 119.1 +0.9
+0.0
Andrew 60 Omar 71 +0.6
-0.1
If winner is:HomeAway
Week of 11/18100.0*Chance in playoffs100.0*Average seed
Richard vs Omar+0.1-0.4
Sam vs Dre-0.2+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
51-0Out092812,045,082
40-1Out505017,073,018
Total:Out0673329,118,100
Games Above .500
Chance Will Make Playoffs