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
John 154.1 Roger 11 +2.6
+0.6
Bobby 142.28 Chuck 11 +0.3
Steve 99.14 Nick 11 +0.3
-0.1
Jordan 108.14 Ryan 11 -0.2
Andy 94.74 Evan 11 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Ryan 11 John 20 +6.6
+0.9
Bobby 11 Chris 20 -0.4
Evan 11 Steve 20 -0.3
Andy 11 Jordan 20 -0.2
+0.1
Ryan 11 Chuck 20 -0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
John 11 Evan 27 -8.8
-1.3
Chris 11 Ryan 27 -2.3
-0.1
Steve 11 Jordan 27 +1.9
+0.2
Bobby 11 Nana 27 -1.2
-0.2
Chuck 11 Andy 27 +0.9
-0.1
Games Above .500
Chance Will Make Playoffs