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*European Competition100.0*Average seed
FC Groningen 0 PEC Zwolle 1 No
-0.4
Ajax 3 Cambuur 0 +0.1
Willem II 1 Den Haag 0 -0.1
FC Utrecht 2 Excelsior 2 +0.0
Week of 5/17100.0*European Competition100.0*Average seed
NAC Breda 4 FC Groningen 5 +0.5
Cambuur 1 Willem II 2 -0.2
Vitesse 3 FC Utrecht 3 +0.1
Points
Chance Will Win Championship