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 -13.5
-0.7
Steve 99.14 Nick 11 +6.7
+0.1
John 154.1 Roger 11 +6.2
+0.2
Chris 127.42 Nana 11 -2.1
Bobby 142.28 Chuck 11 +0.5
+0.0
Jordan 108.14 Ryan 11 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Evan 11 Steve 20 -17.1
-1.3
Ryan 11 Chuck 20 -3.2
-0.1
Ryan 11 John 20 +2.3
-0.1
Nana 11 Roger 20 -1.3
Bobby 11 Chris 20 -0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
John 11 Evan 27 +11.1
+1.5
Chris 11 Ryan 27 -4.5
-0.1
Bobby 11 Nana 27 -1.2
-0.4
Roger 11 Nick 27 +0.5
Chuck 11 Andy 27 +0.4
-0.3
Games Above .500
Chance Will Make Playoffs