How are these numbers calculated?

Big Games

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

Week of 8/11100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Port Adelaide 98 Collingwood 71 +11.8
+12.1
+0.9
Essendon 80 Adelaide 123 +1.9
+0.2
+0.1
West Coast 100 Carlton 83 -1.8
-0.1
-0.1
Bulldogs 57 GWS 105 +1.2
-2.5
+0.0
Sydney 143 Fremantle 39 -1.0
-1.6
-0.2
Hawthorn 116 North Melbourne 89 -0.2
Melbourne 96 St Kilda 72 -0.1
-0.1
-0.0
Geelong 80 Richmond 66 -0.3
Week of 8/19100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Bulldogs 79 Port Adelaide 96 In
+20.7
+0.9
GWS 81 West Coast 60 +1.6
-1.7
+0.0
Gold Coast 57 Essendon 90 -1.3
Fremantle 51 Richmond 155 -13.5
-0.2
Collingwood 59 Geelong 70 -1.9
-0.1
Melbourne 104 Brisbane 91 -0.3
-0.1
If winner is:HomeTieAway
Week of 8/25100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Richmond vs St KildaNoNo+20.1
-0.2-0.2+0.2
Port Adelaide vs Gold Coast+20.1NoNo
+0.5-0.3-0.5
Sydney vs Carlton-4.9+4.9+4.9
-0.3-0.0+0.3

What If

Chances based on how well the Port Adelaide finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-TplayoffsTop 4123456789101112131415161718SpoonCount
561-0-0In39.9%405010No714,188,372
540-0-1InNo5050No7,173,563
520-1-0InNo29656No714,189,961
Total:In19.9%2040373No1,435,551,896
Games Above .500
Chance Will Make Playoffs