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*Wooden Spoon100.0*Average seed
Brisbane 142 Gold Coast 84 -16.2
+0.3
Hawthorn 116 North Melbourne 89 -4.9
+0.1
West Coast 100 Carlton 83 -2.0
+0.0
Week of 8/19100.0*Wooden Spoon100.0*Average seed
St Kilda 127 North Melbourne 78 -13.7
+0.2
Carlton 77 Hawthorn 70 +11.7
-0.3
Melbourne 104 Brisbane 91 +3.2
-0.1
Gold Coast 57 Essendon 90 -0.6
+0.1
If winner is:HomeTieAway
Week of 8/25100.0*Wooden Spoon100.0*Average seed
Brisbane vs North MelbourneNoYesYes
+0.6-0.6-0.6
Port Adelaide vs Gold Coast+0.0-0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-TplayoffsTop 4123456789101112131415161718SpoonCount
241-0-0OutNo31879No2,186,316,696
20-22OutNo100Yes2,189,804,484*
Total:OutNo29395050.0%4,376,121,180

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs