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
Dar 96 Luke 52 +7.4
+0.9
Nonnie 85 Brenna 96 +2.6
-0.1
Graham 99 Scott 84 +1.1
+0.2
Isaac 53 Spencer 88 -1.1
-0.1
Sandy 128 Poppa 106 +0.5
Kelsie 68 Kara 89 +0.1
+0.1
Rodney 125 Dave 99 -0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Dar vs Kelsie+18.8-18.8
+1.1-1.1
Dave vs Nonnie+4.9-4.9
+0.2-0.2
Graham vs Spencer+4.9-4.9
+0.2-0.2
Rodney vs Brenna+0.6-0.6
+0.1-0.1
Isaac vs Scott+0.6-0.6
+0.2-0.2

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
72-0-075.0%28472232,409,917
61-1-03.5423462344,820,304
50-2-0Out2164132912,407,715
Total:20.5%713172416128209,637,936
Games Above .500
Chance Will Make Playoffs