How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Kevin 90.5 Ira 93.18 -0.1
-0.5
Jonny 92.2 Angelo 91.38 +0.1
+0.1
Dan 105.62 Mike 130.94 -0.1
Chris 113.8 Brian 95.57 -0.0
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Kevin 113.42 John 128.3 -0.1
-0.9
Ira 78.04 Angelo 152 -0.2
Jonny 124.96 Chris 91.8 +0.2
Dan 92.9 Nick 86.65 +0.2
Luke 58.97 Mike 114.72 -0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Chris vs Angelo-1.1In
-0.3+0.3
Jonny vs Gary-1.1In
-0.1+0.1
Kevin vs MikeIn-0.8
+1.7-1.3
Luke vs NickIn-0.6
+0.4-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In10022,913,285
70-198.2%352934231,085,347
Total:98.9%42201720153,998,632
Games Above .500
Chance Will Make Playoffs