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
Chris 113.8 Brian 95.57 +14.2
+1.0
Jonny 92.2 Angelo 91.38 -1.7
Dan 105.62 Mike 130.94 -1.4
-0.1
Kevin 90.5 Ira 93.18 -0.2
Gary 71.98 Nick 104.77 -0.1
Luke 81.92 John 57.61 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Jonny 124.96 Chris 91.8 -2.9
-0.7
Dan 92.9 Nick 86.65 +2.9
Luke 58.97 Mike 114.72 -0.3
-0.2
Ira 78.04 Angelo 152 +0.3
-0.1
Kevin 113.42 John 128.3 -0.1
+0.2
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Chris vs Angelo+1.2-1.2
Jonny vs Gary-0.3+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In1008,998,378
70-1In347509,001,166
Total:In502232517,999,544
Games Above .500
Chance Will Make Playoffs