How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 8/15None
Week of 8/22100.0*Chance in playoffs100.0*Average seed
Giants 67 Magpies 75 +6.5
+0.5
Kangaroos 101 Crows 94 +5.9
+0.1
Bombers 108 Suns 89 +1.9
+0.1
Tigers 98 Saints 72 +1.2
-0.1
Eagles 119 Demons 53 -0.1
-0.1
Week of 8/29100.0*Chance in playoffs100.0*Average seed
Magpies 56 Hawks 121 -26.8
-0.7
Swans 65 Tigers 68 Out
-0.1
Crows 141 Saints 62 -0.3
Suns 99 Eagles 151 -0.0
Games Above .500
Chance Will Make Playoffs