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
Mark 87.2 Ryan 78.7 -16.5
-0.7
Brandon 82.5 Sara 89.2 +2.6
+0.1
Michael 88.3 Dan 109.9 +2.5
+0.1
David 74.9 Josh 101.1 -2.2
-0.1
Jake 119.2 Derek 108.6 +1.8
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
Ryan vs Jake+18.2-18.2
+0.7-0.7
Josh vs Mark-9.1+9.1
-0.2+0.2
Andrew vs Brandon+1.4-1.4
+0.1-0.1
Derek vs Jonathan-1.3+1.3
-0.1+0.1
Dan vs David-1.0+1.0
-0.1+0.1
Sara vs Michael+0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
83-097.3%3306431,931,223
72-164.20164324005,782,442
61-211.5123534154005,782,570
50-3Out0317363111201,930,493
Total:40.6%0436251586410015,426,728
Games Above .500
Chance Will Make Playoffs