How are these numbers calculated?

Big Games

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

Week of 8/13100.0*Chance in playoffs100.0*Average seed
Bombers 64 Magpies 162 Out
-0.2
Lions 97 Crows 104 -0.1
Blues 156 Tigers 67 +0.1
Power 61 Eagles 60 -0.1
Week of 8/20100.0*Chance in playoffs100.0*Average seed
Bombers 68 Lions 95 -0.6
Saints 115 Tigers 94 +0.0
Magpies 54 Crows 51 +0.0
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Bulldogs 107 Bombers 78 -0.2
Lions 68 Swans 106 +0.1
Games Above .500  (Full Screen)
Chance Will Make Playoffs  (Full Screen)