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
Saints 97 Cats 97 -18.2
No
-0.4
Kangaroos 94 Dockers 83 -14.2
-0.2
Magpies 56 Tigers 147 -4.0
-0.1
-0.1
Giants 44 Swans 133 +1.4
-0.3
+0.1
Crows 131 Lions 44 -1.1
-0.0
Eagles 162 Bulldogs 85 +0.3
Week of 8/28100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Cats 62 Magpies 110 Out
-0.5
Giants 132 Blues 51 -0.1
Suns 51 Power 88 -0.0
Week of 9/4100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Cats 119 Crows 80 +0.6
Games Above .500
Chance Will Make Playoffs