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
Nonnie 85 Brenna 96 +4.6
-0.1
Dar 96 Luke 52 +1.7
+0.4
Sandy 128 Poppa 106 +0.4
Isaac 53 Spencer 88 -0.4
-0.1
Graham 99 Scott 84 +0.3
+0.1
Jake 117 Nick 98 +0.1
Kelsie 68 Kara 89 +0.0
Rodney 125 Dave 99 -0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Dar vs Kelsie+7.7-14.8
+0.9-1.7
Dave vs Nonnie+3.6-9.3
+0.1-0.2
Graham vs Spencer+1.7-8.0
+0.1-0.4
Isaac vs Scott+1.7-1.2
+0.2-0.2
Rodney vs Brenna+1.3-0.9
+0.2-0.1
Nick vs Poppa+0.3-0.3

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
72-0-088.5%38511103,349,418
61-1-011.011413611117,813,189
50-2-0Out1144141308,394,401
Total:16.7%41226221012121029,557,008
Games Above .500
Chance Will Make Playoffs