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*Chance in playoffs100.0*Average seed
Kangaroos 94 Dockers 83 Out
Saints 97 Cats 97 +0.3
-0.0
Hawks 86 Power 108 +0.2
+0.4
Magpies 56 Tigers 147 -0.1
+0.2
Giants 44 Swans 133 +0.1
+0.2
Week of 8/28100.0*Chance in playoffs100.0*Average seed
Suns 51 Power 88 +0.6
Giants 132 Blues 51 -0.2
Cats 62 Magpies 110 -0.1
Week of 9/4100.0*Chance in playoffs100.0*Average seed
Power 122 Dockers 53 +0.5
Cats 119 Crows 80 -0.2
Demons 103 Giants 77 +0.1
Games Above .500
Chance Will Make Playoffs