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
Melbourne 96 St Kilda 72 -22.7
No
-1.2
Essendon 80 Adelaide 123 +3.9
+0.1
+0.2
West Coast 100 Carlton 83 -3.8
-0.1
-0.2
Bulldogs 57 GWS 105 +3.2
+0.1
Sydney 143 Fremantle 39 -1.8
-0.4
-0.0
Port Adelaide 98 Collingwood 71 -1.7
-0.4
Hawthorn 116 North Melbourne 89 -0.2
-0.1
Geelong 80 Richmond 66 +0.3
Week of 8/19100.0*Chance in playoffs100.0*Top 4100.0*Average seed
St Kilda 127 North Melbourne 78 +13.9
+0.8
Melbourne 104 Brisbane 91 -3.5
-0.1
GWS 81 West Coast 60 +3.3
+0.1
Bulldogs 79 Port Adelaide 96 +2.7
+0.2
Gold Coast 57 Essendon 90 -2.6
-0.2
Carlton 77 Hawthorn 70 +0.5
+0.2
Collingwood 59 Geelong 70 +0.1
If winner is:HomeTieAway
Week of 8/25100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Richmond vs St Kilda-19.9-7.7+20.0
-0.9+0.2+0.9
Essendon vs Fremantle-10.2+9.8+10.1
-0.3+0.2+0.3
West Coast vs Adelaide-9.2+8.8+9.1
-0.3+0.2+0.3
Collingwood vs Melbourne+6.9-6.8-6.8
+0.2-0.2-0.2
Hawthorn vs Bulldogs+3.0+2.8-3.0
+0.3-0.1-0.3

What If

Chances based on how well the St Kilda finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-TplayoffsTop 4123456789101112131415161718SpoonCount
481-0-040.1%No103037203No714,171,934
460-0-112.4No12373813No7,175,300
440-1-00.2No043263No714,204,662
Total:20.1%No515212633No1,435,551,896
Games Above .500
Chance Will Make Playoffs