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
Andy 94.74 Evan 11 +0.2
+0.5
Steve 99.14 Nick 11 +0.1
-0.4
John 154.1 Roger 11 +0.1
-0.3
Chris 127.42 Nana 11 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Ryan 11 Chuck 20 -0.2
Andy 11 Jordan 20 -0.2
-0.0
Nana 11 Roger 20 -0.1
+0.1
Evan 11 Steve 20 -0.1
Ryan 11 John 20 -0.4
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Chuck 11 Andy 27 +1.7
+1.9
Chris 11 Ryan 27 -0.2
John 11 Evan 27 -0.1
+0.1
Bobby 11 Nana 27 -0.1
-0.3
Games Above .500
Chance Will Make Playoffs