How are these numbers calculated?

Big Games

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

Week of 11/16100.0*Chance in playoffs100.0*Average seed
Rob 117.5 Jason 90 In
+0.3
Chris 96 Eric 114 -0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Eric 118 Rob 126.5 +0.5
William 90 Greg 113 -0.1
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Greg 72.5 Peter 143.5 +0.2
Chris 128 Rob 97.5 -0.2
Games Above .500
Chance Will Make Playoffs