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*Average seed
Dockers 87 Swans 96 -0.3
Week of 8/20100.0*Average seed
Hawks 155 Dockers 39 -0.3
Cats 121 Blues 79 +0.1
Week of 8/27100.0*Average seed
Dockers 93 Blues 87 +0.6
Hawks 98 Magpies 95 -0.4
Lions 68 Swans 106 -0.3
Games Above .500
Chance Will Make Playoffs