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
PSV Eindhoven 1 NEC Nijmegen 1 +0.0
Week of 5/10100.0*Average seed
AZ Alkmaar 3 Heerenveen 1 -0.0
Willem II 0 PSV Eindhoven 3 -0.0
Points
Chance Will Win Championship