How are these numbers calculated?

Big Games

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

Week of 11/10100.0*Chance in playoffs100.0*Average seed
Ruth 79.7 Jeremy 128.2 In
+0.2
Craig 147.4 Scott 134.7 +0.2
Michael 95.2 Stacy 65.9 +0.2
-0.2
Week of 11/17100.0*Chance in playoffs100.0*Average seed
Jeremy 153.3 Josh 76.1 +0.2
Ruth 99 Michael 117.6 -0.2
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Michael 126.6 Jay 108.4 -0.2
Scott 99.7 Jeremy 130 +0.1
Games Above .500
Chance Will Make Playoffs