How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Rob 115 Jason 88 +11.4
+1.1
Kevin 54.5 Greg 88.5 -1.1
-0.2
Adam 85.5 William 147 -0.9
Tyler 93 Peter 67 +0.6
+0.1
Chris 61 Eric 72 +0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Eric 83 Rob 84.5 In
+1.0
Jason 101 Kevin 122.5 +1.2
+0.1
Peter 122 Adam 119 -1.0
William 109 Greg 99 +0.2
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Chris 108 Rob 100.5 -1.0
William 127 Jason 137.5 +0.2
Adam 107 Tyler 123.5 +0.2
Games Above .500
Chance Will Make Playoffs