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
Sandy 128 Poppa 106 In
+1.0
Isaac 53 Spencer 88 -1.1
Nonnie 85 Brenna 96 +0.5
+0.1
Jake 117 Nick 98 +0.3
-0.1
Dar 96 Luke 52 -0.2
Graham 99 Scott 84 -0.1
-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-0.9+0.9
Dave vs Nonnie-0.3+0.3
Kara vs Luke-0.2+0.2
Nick vs Poppa+0.1-0.1
Graham vs Spencer-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
102-0-0In16572422,411,980
91-1-0In104137124,816,774
80-2-0In675192,409,182
Total:In41927212559,637,936
Games Above .500
Chance Will Make Playoffs