How are these numbers calculated?

Big Games

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

Week of 3/18100.0*Chance in playoffs100.0*Average seed
Sammy 2.0 1 No Chris 1 +3.9
+0.1
Ireland 3 TKE-A 0 +3.6
+0.0
Raiders 0 Roller Dads 1 -0.1
Week of 3/25100.0*Chance in playoffs100.0*Average seed
No Chris 2 Juul 0 +7.8
+0.1
Raiders 2 TKE-A 0 +3.9
+0.0
Roller Dads 4 Sammy 2.0 3 +3.3
+0.0
Week of 4/1None
Games Above .500
Chance Will Make Playoffs