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 -0.0
Week of 8/22100.0*Average seed
Bulldogs 67 Swans 130 +0.1
Hawks 94 Cats 71 +0.1
Week of 8/29100.0*Average seed
Swans 65 Tigers 68 -0.8
Magpies 56 Hawks 121 -0.1
Games Above .500  (Full Screen)
Chance Will Make Playoffs  (Full Screen)