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 -19.3
-0.6
Brisbane 14 Collingwood 43 -6.9
-0.1
Western Bulldogs 51 Fremantle 66 -2.8
-0.1
St Kilda 42 Richmond 3 -0.2
West Coast 8 Gold Coast 33 +0.1
If winner is:HomeTieAway
Week of 3/20100.0*Chance in playoffs100.0*Average seed
Fremantle vs Melbourne-23.1-3.9+23.2
-0.5-0.2+0.5
Collingwood vs St Kilda-11.7-1.4+11.7
-0.1+0.1+0.1
Carlton vs West Coast-5.5-5.3+5.6
-0.2-0.2+0.2

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seedWooden
TPW-L-Tplayoffs1234567SpoonCount
242-0-099.5%2068110No7,810,470,074
221-0-181.3196219No156,832,005
201-1-060.9124939No15,609,620,821
0-0-262.4125038No787,215
180-1-125.02575No156,832,202
160-2-07.177617No7,810,494,911
Total:57.1%52329394No31,545,037,228
Games Above .500
Chance Will Make Playoffs