How are these numbers calculated?

Big Games

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

Week of 8/21100.0*Average seed
Blues 78 Demons 55 -0.3
Suns 97 Bombers 95 -0.1
Crows 131 Lions 44 -0.1
Week of 8/28100.0*Average seed
Hawks 134 Lions 62 -0.1
Giants 132 Blues 51 +0.0
Week of 9/4100.0*Average seed
Lions 130 Bulldogs 122 +0.8
Hawks 113 Blues 56 +0.1
Games Above .500
Chance Will Make Playoffs