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*Chance in playoffs100.0*Average seed
Kangaroos 63 Saints 115 -12.1
-0.3
Blues 156 Tigers 67 -4.8
-0.1
Hawks 99 Demons 78 -4.7
-0.1
Dockers 87 Swans 96 -0.8
-0.1
Bombers 64 Magpies 162 +0.1
+0.0
Week of 8/20100.0*Chance in playoffs100.0*Average seed
Eagles 94 Kangaroos 110 +7.8
+0.2
Hawks 155 Dockers 39 -7.1
-0.2
Cats 121 Blues 79 +3.8
+0.1
Power 112 Demons 83 +0.1
Magpies 54 Crows 51 +0.0
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Dockers 93 Blues 87 +25.8
+0.3
Demons 103 Kangaroos 113 +23.7
+0.2
Games Above .500
Chance Will Make Playoffs