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
Geelong 20 North Melbourne 66 +7.8
+0.4
Adelaide 21 GWS 26 In
-0.1
Brisbane 14 Collingwood 43 +0.1
If winner is:HomeTieAway
Week of 3/20100.0*Chance in playoffs100.0*Average seed
North Melbourne vs Western Bulldogs+0.2+0.0-0.2
Richmond vs Brisbane+0.1+0.0-0.1
GWS vs Geelong-0.1-0.0+0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-Tplayoffs1234567SpoonCount
26-28In100No7,967,188,876*
241-1-0In955No15,609,654,987
0-0-2In973No789,334
220-1-1In69292No156,819,887
200-2-0In335017No7,810,584,144
Total:In81154No31,545,037,228

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs