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*Relegated100.0*Average seed
Sparta 4 Ajax 0 -7.8
+0.9
NAC Breda 0 De Graafschap 1 +4.5
-0.1
FC Volendam 0 FC Groningen 1 -2.7
+0.1
Roda JC 0 Willem II 1 -2.5
Heerenveen 2 Den Haag 2 +0.4
-0.0
FC Utrecht 2 Feyenoord 2 +0.3
PSV Eindhoven 1 NEC Nijmegen 1 +0.2
Vitesse Arnhem 1 Heracles 0 +0.1
Week of 5/10100.0*Relegated100.0*Average seed
Heracles 1 FC Utrecht 1 +0.2
NEC Nijmegen 1 Sparta 1 +0.2
Willem II 0 PSV Eindhoven 3 +0.1
Points
Chance Will Win Championship