How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Chance in playoffs100.0*Average seed
Shawn 123.26 Robert 101.12 +24.5
+1.3
Kashif 133.22 Drew 127.58 +3.1
+0.2
Destry 138.64 Jamal 114.22 -2.5
-0.1
Rob 149 Hunter 103.86 +1.7
+0.1
Week of 11/25100.0*Chance in playoffs100.0*Average seed
Shawn 92.08 Marla 131.84 -21.8
-1.1
Rob 104.64 Destry 90.5 +3.2
+0.2
Kashif 163.52 Jason 93.42 +3.2
+0.2
Jared 89.2 Robert 101.6 -2.0
Drew 113.16 Hunter 92.38 +0.1
If winner is:HomeAway
Week of 12/2100.0*Chance in playoffs100.0*Average seed
Shawn vs Jamal+38.8-38.8
+1.5-1.5
Kashif vs Robert+5.1-5.1
+0.2-0.2
Jared vs Marla-4.6+4.6
-0.2+0.2
Drew vs Jason-1.5+1.5
Destry vs Hunter-0.2+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-096.6%21332815312,858,592
60-119.1141431341612,859,352
Total:57.8%101716141717825,717,944
Games Above .500
Chance Will Make Playoffs