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 +7.1
+0.3
Steve 99.14 Nick 11 +6.9
+0.3
Chris 127.42 Nana 11 -4.3
-0.1
Andy 94.74 Evan 11 +3.2
+0.1
Bobby 142.28 Chuck 11 -2.9
-0.2
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Ryan 11 Chuck 20 +22.6
+1.7
Nana 11 Roger 20 -2.8
-0.1
Evan 11 Steve 20 +1.9
Ryan 11 John 20 +1.4
+0.3
Bobby 11 Chris 20 -0.2
-0.1
Andy 11 Jordan 20 +0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Chuck 11 Andy 27 -10.5
-0.9
Chris 11 Ryan 27 -0.8
+0.1
John 11 Evan 27 -0.2
Bobby 11 Nana 27 -0.2
Roger 11 Nick 27 +0.1
Games Above .500
Chance Will Make Playoffs