How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Chance in playoffs100.0*Average seed
Bill 143.13 Chris 144.55 -10.2
-0.9
Andrew 0 Jennifer 145.88 -0.5
-0.0
Paul 161.98 Matt 217.81 -0.1
Todd 187.12 Frank 147.1 +0.0
Week of 11/25100.0*Chance in playoffs100.0*Average seed
Bill 199.25 Darrin 120.15 +16.9
+0.3
Jennifer 142.99 Chris 114.57 -11.4
-0.1
Paul 152.3 Frank 187.85 +4.7
+0.1
Week of 12/2100.0*Chance in playoffs100.0*Average seed
Todd 148.55 Bill 186.68 +0.4
Jennifer 146.35 Matt 152.14 +0.1
Games Above .500
Chance Will Make Playoffs