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 +1.4
+6.6
+0.3
Essendon 80 Adelaide 123 +0.5
+0.0
Bulldogs 57 GWS 105 +0.4
-5.6
-0.0
Melbourne 96 St Kilda 72 -0.1
West Coast 100 Carlton 83 -0.1
Sydney 143 Fremantle 39 -0.1
-0.3
-0.0
Geelong 80 Richmond 66 -2.4
-0.0
If winner is:HomeTieAway
Week of 8/18100.0*Chance in playoffs100.0*Top 4100.0*Average seed
Bulldogs vs Port Adelaide-0.5+0.3In
-30.9-17.8+19.7
-0.8-0.2+0.5
GWS vs West Coast+0.1-0.2-0.3
-4.8-4.8+12.7
-0.1-0.1+0.2
Melbourne vs Brisbane-0.0+0.0+0.2
Gold Coast vs Essendon+0.1+0.1-0.1
Adelaide vs Sydney+3.3+1.7-8.9
+0.1-0.1-0.3
Fremantle vs Richmond+20.8-8.3-8.6
+0.4-0.1-0.1
Collingwood vs Geelong+5.6+5.2-5.0
+0.1+0.1-0.1

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
562-0-0In60.4%1546364No895,003,763
541-0-1In18.31176318No12,440,096
521-1-0100.0%3.434548400No685,513,528
0-0-2In3.94514510No42,008
500-1-198.8No33743151No4,206,175
480-2-093.1No1254224610No76,280,042
Total:99.7%33.8%826382331000No1,673,485,612
Games Above .500
Chance Will Make Playoffs