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
Chris 127.42 Nana 11 +17.6
+1.1
Bobby 142.28 Chuck 11 +1.6
+0.1
John 154.1 Roger 11 +1.6
+0.1
Steve 99.14 Nick 11 +1.4
+0.1
Andy 94.74 Evan 11 +0.9
Jordan 108.14 Ryan 11 -0.8
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Bobby 11 Chris 20 +9.4
+0.8
Ryan 11 Chuck 20 -0.7
Andy 11 Jordan 20 +0.6
-0.1
Evan 11 Steve 20 +0.2
Nana 11 Roger 20 +0.1
Ryan 11 John 20 +0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Chuck 11 Andy 27 In
+0.1
Steve 11 Jordan 27 In
-0.1
Chris 11 Ryan 27 -0.3
-0.6
Games Above .500
Chance Will Make Playoffs