How are these numbers calculated?

Big Games

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

Week of 3/13100.0*Chance in playoffs100.0*Average seed
Brisbane 14 Collingwood 43 -11.2
-0.5
West Coast 8 Gold Coast 33 -7.7
-0.1
Geelong 20 North Melbourne 66 +2.3
-0.0
Adelaide 21 GWS 26 +1.6
-0.1
If winner is:HomeTieAway
Week of 3/20100.0*Chance in playoffs100.0*Average seed
Richmond vs Brisbane-22.0+4.5+21.9
-0.6+0.1+0.6
Gold Coast vs Adelaide-10.4+10.1+10.3
-0.1+0.1+0.1
GWS vs Geelong-1.7-0.0+1.7
-0.1+0.0+0.1
North Melbourne vs Western Bulldogs-0.1-0.0+0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-Tplayoffs1234567SpoonCount
222-0-0In375012No7,810,517,684
201-0-1In55540No156,822,512
181-1-083.4%206417No15,609,716,854
0-0-281.6196318No788,841
160-1-148.5544447No156,815,823
140-2-012.31258273No7,810,375,514
Total:69.8%922382371No31,545,037,228
Games Above .500
Chance Will Make Playoffs