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
Frank 48.2 Sam 79.6 +11.2
+0.5
Carlos 67.7 Dan 103.4 -7.5
-0.2
Richard 118.4 Jeff 72.5 +3.3
+0.1
Dre 72.6 Andrew 102.9 +1.1
Omar 75.8 Dorff 104.9 +0.9
+0.1
Mully 136.8 Rick 91.3 -0.7
-0.1
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Sam 61.4 Richard 119.1 -17.9
-0.4
Dan 88.6 Jeff 140.2 +16.1
+0.2
Andrew 60 Omar 71 +5.5
+0.2
Mully 82.3 Frank 113.4 +1.1
+0.1
Carlos 96.8 Dre 67.2 +0.6
+0.1
Dorff 30.4 Rick 122.2 -0.0
If winner is:HomeAway
Week of 11/18100.0*Chance in playoffs100.0*Average seed
Sam vs Dre+24.9-35.3
+0.5-0.7
Dan vs Mully-16.9+11.9
-0.3+0.2
Rick vs Jeff+7.6-15.6
+0.2-0.3
Dorff vs Andrew+11.9-2.2
+0.5-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-083.8%295515217,073,018
50-123.6123443212,045,082
Total:58.9%1742271429,118,100
Games Above .500
Chance Will Make Playoffs