How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Jeremy 74.2 Ruth 90 +6.6
+0.4
Paul 123 Matthew 65.1 +3.6
+0.1
Craig 72.7 Jordan 107.6 -0.5
Josh 106.4 Scott 72.4 -0.3
The Girls 68.8 Michael 98.8 +0.2
+0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Ruth 52.5 Paul 76.6 -0.2
Matthew 99.1 Josh 93.3 -0.0
Week of 12/1100.0*Chance in playoffs100.0*Average seed
The Girls 100 Matthew 60.3 +0.1
Josh 124.6 Ruth 100.3 -0.1
Paul 76.4 Jordan 54.7 -0.1
Games Above .500
Chance Will Make Playoffs