How are these numbers calculated?

Big Games

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

Week of 8/15100.0*Average seed
Blues 76 Cats 82 +0.1
Week of 8/22100.0*Average seed
Bulldogs 67 Swans 130 -0.2
Lions 48 Dockers 106 +0.1
Power 140 Blues 37 +0.1
Giants 67 Magpies 75 +0.1
Week of 8/29100.0*Average seed
Bulldogs 109 Giants 115 -0.6
Blues 90 Bombers 90 +0.2
Cats 143 Lions 81 +0.1
Games Above .500  (Full Screen)
Chance Will Make Playoffs  (Full Screen)