How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Sidney 116.62 Michael 92.28 -14.7
-0.7
Steve 103.92 Russell 114.6 +2.0
+0.1
Mike 77.06 Mark 50.3 +2.0
+0.2
Suzie 106.2 Noah 89.76 -1.1
-0.2
Carlos 105.36 Ole 116.1 +1.0
Chris 79.68 Josh 104.86 +0.9
+0.0
If winner is:HomeAway
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Michael vs Noah+28.9-15.1
+1.6-0.8
Steve vs Mark-5.3+3.5
-0.1+0.1
Chris vs Sidney-3.8+1.0
-0.1+0.0
Ole vs Suzie-0.3+2.0
+0.0-0.1
Josh vs Russell+0.1-0.2

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
72-083.1%0314323515210,691,055
61-17.007233427930,946,200
50-2Out12567720,079,753
Total:17.9%0026914182226261,717,008
Games Above .500
Chance Will Make Playoffs