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
Tyler 93 Peter 67 -6.6
-1.1
Adam 85.5 William 147 -0.4
-0.1
Rob 115 Jason 88 -0.2
Kevin 54.5 Greg 88.5 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Peter 122 Adam 119 +10.1
+1.0
Eric 83 Rob 84.5 +7.6
Jason 101 Kevin 122.5 +4.2
+0.3
Tyler 54.5 Chris 93 -0.3
William 109 Greg 99 +0.1
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Greg 129 Peter 105 -1.1
Adam 107 Tyler 123.5 +0.4
Chris 108 Rob 100.5 +0.3
William 127 Jason 137.5 +0.2
Games Above .500
Chance Will Make Playoffs