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*Top 4100.0*Average seed
Kangaroos 94 Dockers 83 +20.6
+2.1
+0.8
Saints 97 Cats 97 +14.4
+0.2
Magpies 56 Tigers 147 -2.1
-0.1
Crows 131 Lions 44 -2.0
-0.1
Giants 44 Swans 133 +1.9
-1.0
+0.0
Eagles 162 Bulldogs 85 +0.7
+0.1
Week of 8/28100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Cats 62 Magpies 110 In
+0.1
Kangaroos 73 Bulldogs 96 -3.7
-0.8
Hawks 134 Lions 62 -0.3
Crows 126 Eagles 69 No
-0.1
Saints 38 Swans 135 No
Bombers 47 Tigers 74 -0.1
Week of 9/4100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Tigers 108 Kangaroos 67 -0.1
Games Above .500
Chance Will Make Playoffs