How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
Bobby 142.28 Chuck 132.94 -8.8
-1.1
John 154.1 Roger 134.58 -0.9
-0.1
Chris 127.42 Nana 180.34 +0.3
+0.1
Jordan 108.14 Ryan 119.84 -0.2
Andy 94.74 Evan 82.96 +0.1
Steve 99.14 Nick 116.44 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Ryan 112.9 Chuck 89.4 -13.6
-1.1
Evan 143.84 Steve 75.88 +0.4
Nana 112.14 Roger 81.58 -0.2
Andy 104.98 Jordan 102.08 -0.1
Nick 105 John 141.3 +0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Chuck 120.9 Andy 138.94 -0.4
Chris 102.76 Ryan 137 +0.2
John 122.74 Evan 127.94 -0.1
Steve 143.7 Jordan 119.8 -0.1
If winner is:HomeAway
Andy vs Chris+0.3-0.3
Steve vs Chuck-0.2+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
41-0Out762410,928,563
30-1Out267410,930,181
Total:Out514921,858,744
Games Above .500
Chance Will Make Playoffs