How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Chance in playoffs100.0*Average seed
Jake 119.2 Derek 108.6 -9.7
-0.9
Mark 87.2 Ryan 78.7 +3.1
+0.1
David 74.9 Josh 101.1 -1.1
Brandon 82.5 Sara 89.2 +0.9
Michael 88.3 Dan 109.9 +0.7
Jonathan 113.2 Andrew 131.5 -0.7
+0.1
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Derek vs Jonathan+3.5-3.5
+1.0-1.0
Ryan vs Jake-1.7+1.7
-0.1+0.1
Josh vs Mark-1.7+1.7
-0.1+0.1
Dan vs David-0.3+0.3
-0.1+0.1
Sara vs Michael-0.2+0.2
Andrew vs Brandon+0.1-0.1
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
73-027.8%284623301,930,230
62-11.31102934206105,783,450
51-2Out0051833311115,783,220
40-3Out11348381,929,828
Total:4.0%49141514151310515,426,728
Games Above .500
Chance Will Make Playoffs