How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Jake 117 Nick 98 In
+1.0
Isaac 53 Spencer 88 -0.8
Dar 96 Luke 52 -0.8
Graham 99 Scott 84 +0.8
Nonnie 85 Brenna 96 -0.4
Sandy 128 Poppa 106 +0.1
Kelsie 68 Kara 89 -0.2
Rodney 125 Dave 99 +0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Jake vs Sandy+1.0-1.0
Kara vs Luke-0.2+0.2
Dave vs Nonnie-0.2+0.2
Nick vs Poppa+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
9.52-0-0In563862,409,894
8.51-1-0In213364364,819,243
7.50-2-0In197562,408,799
Total:In151620262229,637,936
Games Above .500
Chance Will Make Playoffs