How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Chance in playoffs100.0*Average seed
Perry 97.9 Brian 101.1 In
+0.6
Ross 72.2 Dick 113 +2.5
-0.1
Marando 109.6 Doc 77.6 +1.1
-0.1
Ballgame 111.3 McDonough 116.7 +0.1
Week of 11/28100.0*Chance in playoffs100.0*Average seed
Brian 129.8 Ross 111.8 +0.6
Dick 109.4 Doc 106.8 -0.2
Perry 140.7 Clements 120.3 -0.1
Mitch 127.8 McDonough 106.7 -0.1
Week of 12/5100.0*Chance in playoffs100.0*Average seed
Ballgame 111.1 Brian 123.6 +1.1
Dick 119.8 Clements 78.4 -0.2
Marando 94.1 Mitch 108.5 +0.2
Perry 98.3 Ross 94.7 -0.1
Games Above .500
Chance Will Make Playoffs