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 +13.2
+7.6
+0.7
Saints 97 Cats 97 +6.5
+0.2
+0.1
Crows 131 Lions 44 -3.5
-1.2
-0.2
Magpies 56 Tigers 147 -1.9
-0.5
-0.1
Giants 44 Swans 133 +1.0
-2.2
-0.1
Hawks 86 Power 108 -0.1
+0.6
Eagles 162 Bulldogs 85 +0.9
+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 -14.6
-0.9
Hawks 134 Lions 62 -3.0
-0.1
Crows 126 Eagles 69 No
-0.1
Saints 38 Swans 135 No
-0.1
Bombers 47 Tigers 74 -0.2
-0.2
Week of 9/4100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Tigers 108 Kangaroos 67 -0.4
Games Above .500
Chance Will Make Playoffs