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
Michael 88.3 Dan 109.9 -10.0
-0.9
Brandon 82.5 Sara 89.2 +1.9
+0.1
Mark 87.2 Ryan 78.7 +1.1
+0.0
Jake 119.2 Derek 108.6 +0.6
+0.1
David 74.9 Josh 101.1 -0.4
-0.0
Jonathan 113.2 Andrew 131.5 -0.2
+0.0
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Sara vs Michael-2.8+2.8
-1.1+1.1
Ryan vs Jake-2.1+1.1
-0.1+0.0
Josh vs Mark-1.9+0.2
-0.1+0.0
Andrew vs Brandon+0.2-0.6
+0.1-0.2
Derek vs Jonathan-0.1+0.1
-0.0+0.1
Dan vs David-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
73-035.8%365113002,086,625
62-12.121943297109,794,279
51-2Out03183330141013,336,164
40-3Out111483475,636,388
Total:3.1%3916171715157130,853,456
Games Above .500
Chance Will Make Playoffs