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
Witchey 98.4 Nightmares 84.6 -16.1
-0.7
New York 119.9 Jack 109.1 -4.1
-0.1
Hirth 117.8 El-Hayek 100.2 +0.3
Jones 121 Tom Brady 63.3 -0.3
-0.0
Week of 11/25100.0*Chance in playoffs100.0*Average seed
Sexton 93.5 Witchey 106 -35.0
-0.8
El-Hayek 114.1 Jones 90.5 -10.9
-0.2
Nightmares 63.1 Jack 136.2 -6.5
-0.2
Hirth 38.9 Ohio 87.2 +4.7
+0.2
Tom Brady 91.8 New York 96.3 -3.1
-0.1
If winner is:HomeTieAway
Week of 12/2100.0*Chance in playoffs100.0*Average seed
El-Hayek vs New York-10.7+36.5+8.0
-0.4+0.8+0.3
Jack vs Witchey-2.7+24.0+24.0
-0.1+0.5+0.5
Nightmares vs Tom Brady+3.3OutOut
+0.4-0.3-1.3
Sexton vs Hirth+3.3-10.7-10.7
+0.1-0.2-0.2
Jones vs Ohio-6.1-6.1+3.1
-0.3-0.3+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910Count
61-0-014.4%059345237,515,311
5.50-0-1Out991489,178
50-1-0Out29810,848,531
Total:11.0%04726412248,853,020
Games Above .500
Chance Will Make Playoffs