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*Top 2100.0*Average seed
Craig 97.2 Scott 100.6 -12.2
-20.9
-0.8
Jay 78.4 Paul 86 +2.7
+4.2
+0.1
Ruth 80.8 Jeremy 124.6 +1.4
+3.1
+0.1
Josh 102.3 Gabby 143.3 +0.2
+2.6
Michael 107 Stacy 75.4 +2.5
+0.1
Week of 11/20100.0*Chance in playoffs100.0*Top 2100.0*Average seed
Paul 80.7 Craig 94 +16.3
+17.5
+0.9
Stacy 127.1 Jay 86 +1.6
-0.9
Gabby 116.8 Scott 145.6 +1.5
+2.9
+0.1
Ruth 105.4 Michael 81.1 -0.6
Week of 11/27100.0*Chance in playoffs100.0*Top 2100.0*Average seed
Craig 112.2 Stacy 109.9 Yes
+1.0
Scott 100.6 Jeremy 169.7 -4.4
Josh 94.3 Ruth 89.8 +0.3
+0.1
Games Above .500
Chance Will Make Playoffs