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
Michael 107 Stacy 75.4 +12.8
+5.1
+1.0
Jay 78.4 Paul 86 +1.9
+0.6
+0.1
Ruth 80.8 Jeremy 124.6 +0.7
+0.2
Josh 102.3 Gabby 143.3 +0.3
+0.7
-0.1
Craig 97.2 Scott 100.6 +0.8
-0.1
Week of 11/20100.0*Chance in playoffs100.0*Top 2100.0*Average seed
Ruth 105.4 Michael 81.1 -24.3
-12.1
-1.6
Paul 80.7 Craig 94 -1.9
-1.9
-0.1
Gabby 116.8 Scott 145.6 +0.6
-0.4
Jeremy 92.8 Josh 90.8 +0.3
-0.5
Stacy 127.1 Jay 86 -0.2
-1.8
Week of 11/27100.0*Chance in playoffs100.0*Top 2100.0*Average seed
Michael 77.6 Jay 80.9 Out
-1.3
Josh 94.3 Ruth 89.8 +2.1
+0.1
Gabby 109 Paul 59.4 -2.1
-0.3
Games Above .500
Chance Will Make Playoffs