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
Go Ahead Eagles 1 Heerenveen 1 +0.5
-0.1
FC Utrecht 2 Excelsior 2 +0.5
AZ Alkmaar 3 NAC Breda 2 +0.1
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