How are these numbers calculated?

Big Games

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

Week of 5/10100.0*Relegated100.0*Average seed
AZ Alkmaar 3 NAC Breda 2 +2.8
-0.1
FC Utrecht 2 Excelsior 2 +1.1
-0.0
Go Ahead Eagles 1 Heerenveen 1 -0.1
+0.0
Week of 5/17100.0*Relegated100.0*Average seed
Heracles 1 Go Ahead Eagles 0 +0.3
NAC Breda 4 FC Groningen 5 -0.2
Points
Chance Will Win Championship