How are these numbers calculated?

Big Games

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

Week of 5/3100.0*Average seed
Vitesse Arnhem 1 Heracles 0 -0.2
FC Utrecht 2 Feyenoord 2 +0.1
PSV Eindhoven 1 NEC Nijmegen 1 +0.1
Week of 5/10100.0*Average seed
NEC Nijmegen 1 Sparta 1 -0.8
Heracles 1 FC Utrecht 1 +0.2
Den Haag 3 Vitesse Arnhem 1 +0.2
Points
Chance Will Win Championship