How are these numbers calculated?

Big Games

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

Week of 5/2100.0*Average seed
Waalwijk 1 Venlo 2 -0.4
NEC Nijmegen 1 Ajax 4 -0.3
FC Utrecht 2 Vitesse Arnhem 2 -0.2
Points
Chance Will Win Championship