How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Derek 100.5 Manj 60.2 -0.6
BenF 96.4 Mitch 101 In
+0.2
Ryan 105.9 Kyle 70.9 +0.3
John 96 BenG 53.9 -0.1
+0.4
AndrewL 80.9 AndrewF 99.6 +0.3
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Mitch 100.6 AndrewL 120.7 -0.2
Manj 113 John 59.5 -0.1
BenG 80.4 Phil 73 -0.0
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Ryan vs Mitch-1.0+0.6
Jaylen vs BenG+0.4-0.1
Phil vs Manj-0.1+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-0In100038,189,569
80-1In12117822,241,031
Total:In6742960,430,600
Games Above .500
Chance Will Make Playoffs