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
Gary 71.98 Nick 104.77 -23.3
-1.1
Jonny 92.2 Angelo 91.38 +2.8
+0.1
Dan 105.62 Mike 130.94 -2.1
Chris 113.8 Brian 95.57 +1.3
Kevin 90.5 Ira 93.18 -0.7
Luke 81.92 John 57.61 +0.2
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Gary 113.22 Brian 107.49 +17.7
+1.0
Ira 78.04 Angelo 152 -5.9
-0.2
Luke 58.97 Mike 114.72 -3.1
Dan 92.9 Nick 86.65 +2.0
-0.1
Jonny 124.96 Chris 91.8 -1.8
-0.1
Kevin 113.42 John 128.3 -0.8
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Jonny vs GaryOut+26.9
-1.2+1.2
Luke vs Nick+23.1-23.1
+0.2-0.2
Kevin vs Mike+1.9-1.9
+0.1-0.1
Chris vs Angelo+1.9-1.9
+0.1-0.1
Dan vs Brian-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-053.8%1440468,997,698
60-1Out29719,001,846
Total:26.9%72023153517,999,544
Games Above .500
Chance Will Make Playoffs