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
Dan 105.62 Mike 130.94 -11.8
-0.9
Gary 71.98 Nick 104.77 +0.3
+0.1
Chris 113.8 Brian 95.57 +0.3
+0.1
Jonny 92.2 Angelo 91.38 +0.3
-0.1
Luke 81.92 John 57.61 -0.3
-0.2
Kevin 90.5 Ira 93.18 +0.2
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Dan 92.9 Nick 86.65 +1.5
+0.7
Ira 78.04 Angelo 152 Out
-0.1
Luke 58.97 Mike 114.72 +1.0
+0.2
Gary 113.22 Brian 107.49 -0.3
-0.1
Jonny 124.96 Chris 91.8 -0.3
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Dan vs Brian+1.0-1.0
Jonny vs Gary+0.3-0.3
Luke vs Nick-0.3+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-0Out50508,999,753
50-1Out50508,999,791
Total:Out2525252517,999,544
Games Above .500
Chance Will Make Playoffs