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
Sydney 143 Fremantle 39 +12.4
+12.1
+1.0
Bulldogs 57 GWS 105 +2.3
-1.4
+0.1
West Coast 100 Carlton 83 -0.9
-0.3
-0.1
Essendon 80 Adelaide 123 +0.9
+0.4
+0.1
Port Adelaide 98 Collingwood 71 -0.5
-3.3
-0.2
Melbourne 96 St Kilda 72 -0.1
-0.1
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
-7.3
-0.2
GWS 81 West Coast 60 In
-4.0
-0.1
Fremantle 51 Richmond 155 -11.0
-0.2
Collingwood 59 Geelong 70 -4.5
-0.1
Melbourne 104 Brisbane 91 -0.2
-0.1
If winner is:HomeTieAway
Week of 8/25100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Richmond vs St KildaNoNo+17.5
-0.2-0.2+0.3
Sydney vs Carlton+17.5NoNo
+0.6-0.1-0.5
Port Adelaide vs Gold Coast-7.5+7.4+7.4
-0.3+0.0+0.3
Collingwood vs Melbourne+0.1+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-TplayoffsTop 4123456789101112131415161718SpoonCount
561-0-0In34.8%355015No714,188,444
540-0-1InNo5050No7,170,913
520-1-0InNo19729No714,192,539
Total:In17.3%1735435No1,435,551,896
Games Above .500
Chance Will Make Playoffs