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
Richard 118.4 Jeff 72.5 -14.5
-0.6
Carlos 67.7 Dan 103.4 -3.9
-0.2
Frank 48.2 Sam 79.6 -2.9
-0.1
Omar 75.8 Dorff 104.9 +0.8
+0.2
Mully 136.8 Rick 91.3 -0.6
Dre 72.6 Andrew 102.9 +0.1
+0.1
Week of 11/11100.0*Chance in playoffs100.0*Average seed
Dan 88.6 Jeff 140.2 +3.6
+0.5
Sam 61.4 Richard 119.1 +1.3
Andrew 60 Omar 71 +0.8
-0.1
Carlos 96.8 Dre 67.2 +0.2
+0.1
If winner is:HomeAway
Week of 11/18100.0*Chance in playoffs100.0*Average seed
Rick vs Jeff-15.8+32.4
-0.4+0.8
Sam vs Dre-9.1+12.9
-0.2+0.2
Dorff vs Andrew+13.5-2.5
+0.3-0.1
Dan vs Mully-8.5+6.0
-0.3+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-052.9%124137109,532,063
50-14.805266919,586,037
Total:20.5%417305029,118,100
Games Above .500
Chance Will Make Playoffs