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
West Coast 100 Carlton 83 +5.4
+0.3
Bulldogs 57 GWS 105 +4.3
-0.1
+0.1
Essendon 80 Adelaide 123 +3.4
+0.1
Melbourne 96 St Kilda 72 -2.0
Hawthorn 116 North Melbourne 89 -0.6
-0.1
Sydney 143 Fremantle 39 -0.4
-0.0
Port Adelaide 98 Collingwood 71 -0.1
Week of 8/19100.0*Chance in playoffs100.0*Top 4100.0*Average seed
GWS 81 West Coast 60 -14.1
No
-0.4
Gold Coast 57 Essendon 90 -5.9
-0.2
Bulldogs 79 Port Adelaide 96 +4.6
+0.2
Melbourne 104 Brisbane 91 -2.3
-0.0
Carlton 77 Hawthorn 70 +1.4
+0.2
St Kilda 127 North Melbourne 78 -0.5
-0.1
If winner is:HomeTieAway
Week of 8/25100.0*Chance in playoffs100.0*Top 4100.0*Average seed
West Coast vs Adelaide+31.8-12.7-16.3
+0.9-0.2-0.5
Essendon vs Fremantle-2.9+14.5+21.7
-0.1+0.2+0.4
Collingwood vs Melbourne+4.4-5.2-5.3
+0.1-0.1-0.1
Richmond vs St Kilda+0.6-0.5-1.8
+0.1-0.4-0.5
Hawthorn vs Bulldogs+1.1-0.4-1.3
+0.3-0.3-0.3

What If

Chances based on how well the West Coast finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-TplayoffsTop 4123456789101112131415161718SpoonCount
481-0-049.3%No16334640No1,478,546,775
460-0-14.8No543439No21,865,199
440-1-01.2No1354519No2,875,709,206
Total:17.5%No512393112No4,376,121,180
Games Above .500
Chance Will Make Playoffs