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 -0.5
-0.7
Dan 105.62 Mike 130.94 +0.2
-0.1
Jonny 92.2 Angelo 91.38 +0.1
+0.2
Gary 71.98 Nick 104.77 -0.1
-0.1
Chris 113.8 Brian 95.57 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Ira 78.04 Angelo 152 -0.1
-0.2
Jonny 124.96 Chris 91.8 -0.1
+0.2
Kevin 113.42 John 128.3 -0.1
-0.6
Dan 92.9 Nick 86.65 +0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Chris vs Angelo-0.4In
-0.2+0.2
Luke vs NickIn-0.4
+0.3-0.3
Kevin vs MikeIn-0.4
+1.4-1.4
Jonny vs Gary-0.4In
-0.1+0.1

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
81-0In1008,999,628
70-199.1%47262718,999,916
Total:99.6%50231313017,999,544
Games Above .500
Chance Will Make Playoffs