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*Average seed
Mitch 106.5 Clements 136.5 -0.7
Perry 97.9 Brian 101.1 +0.3
Marando 109.6 Doc 77.6 -0.0
Week of 11/28100.0*Average seed
Ballgame 120.7 Marando 115.5 +0.2
Mitch 127.8 McDonough 106.7 +0.2
Perry 140.7 Clements 120.3 -0.1
Dick 109.4 Doc 106.8 -0.1
Brian 129.8 Ross 111.8 -0.0
Week of 12/5100.0*Average seed
Marando 94.1 Mitch 108.5 +0.4
Perry 98.3 Ross 94.7 -0.1
Dick 119.8 Clements 78.4 -0.0
Games Above .500
Chance Will Make Playoffs