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
Gunner 68 Touchers 73 Out
-0.1
Wildcats 100 Bandits 71 +0.0
Week of 11/25100.0*Chance in playoffs100.0*Average seed
FCB 76 Gunner 89 +0.2
Week of 12/2100.0*Chance in playoffs100.0*Average seed
Wildcats 76 Gunner 73 -0.4
Bandits 121 Brough 74 -0.2
Totoro 74 FCB 79 -0.2
Games Above .500
Chance Will Make Playoffs