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
Steve 99.14 Nick 11 -37.5
-1.5
John 154.1 Roger 11 +6.1
+0.2
Chris 127.42 Nana 11 -5.0
-0.1
Andy 94.74 Evan 11 +3.3
+0.1
Bobby 142.28 Chuck 11 +0.7
+0.1
Jordan 108.14 Ryan 11 +0.2
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Evan 11 Steve 20 +3.2
+0.1
Ryan 11 Chuck 20 -2.4
Ryan 11 John 20 +2.0
+0.3
Nana 11 Roger 20 -1.5
Bobby 11 Chris 20 -0.2
-0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Roger 11 Nick 27 +11.5
+0.5
Chris 11 Ryan 27 -8.1
-0.2
Bobby 11 Nana 27 -4.3
-0.1
John 11 Evan 27 -1.4
Chuck 11 Andy 27 +1.1
+0.3
Steve 11 Jordan 27 +0.1
Games Above .500
Chance Will Make Playoffs