How are these numbers calculated?

Big Games

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

Week of 8/12100.0*Top 4100.0*Average seed
GWS 96 West Coast 97 -32.9
-1.4
St Kilda 76 Sydney 146 -4.0
-0.1
Richmond 78 Geelong 82 -3.2
-0.1
Hawthorn 96 North Melbourne 57 -2.0
-0.1
Fremantle 70 Adelaide 142 -1.4
-0.1
Bulldogs 95 Collingwood 92 -1.1
-0.0
Week of 8/20100.0*Top 4100.0*Average seed
North Melbourne 76 Sydney 85 -5.1
-0.1
Port Adelaide 94 Adelaide 109 -3.2
-0.1
GWS 129 Fremantle 37 +0.3
+0.0
Carlton 78 Melbourne 58 -0.2
Brisbane 69 Geelong 129 -0.1
Week of 8/26100.0*Top 4100.0*Average seed
North Melbourne 63 GWS 100 +42.8
+1.8
Adelaide 71 West Coast 100 +8.9
-0.3
Geelong 155 Melbourne 44 -6.4
-0.1
Hawthorn 112 Collingwood 111 -0.1
Sydney 164 Richmond 51 -0.1
Fremantle 69 Bulldogs 49 Yes
Games Above .500
Chance Will Make Playoffs