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
Melbourne 24 Carlton 40 +35.0
+1.0
Brisbane 14 Collingwood 43 -13.7
-0.2
Western Bulldogs 51 Fremantle 66 -0.4
-0.0
If winner is:HomeTieAway
Week of 3/20100.0*Chance in playoffs100.0*Average seed
Carlton vs West Coast+0.9-4.9-29.0
+0.0-0.3-1.1
Fremantle vs Melbourne+7.8+7.5-8.7
+0.0+0.2-0.0
Collingwood vs St Kilda-1.3+7.7+7.9
-0.0+0.2+0.2

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-Tplayoffs1234567SpoonCount
282-0-0In7822No53,073,305,778
261-0-1In3763No760,317,483
241-1-083.1%0354717No45,245,625,088
0-0-284.5335215No2,513,815
220-1-170.2155530No239,840,958
200-2-028.732671No1,269,546,786
Total:91.4%4228229No100,591,149,908
Games Above .500
Chance Will Make Playoffs