How are these numbers calculated?

Big Games

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

Week of 4/29100.0*Relegated100.0*Average seed
NAC 3 Heerenveen 0 +3.0
-0.1
Zwolle 0 Willem II 1 No
+0.8
Feyenoord 3 Sparta 1 -1.6
+0.1
VVV 1 Roda 4 -0.4
+0.2
Groningen 4 Excelsior 0 -0.1
Week of 5/6100.0*Relegated100.0*Average seed
Willem II 2 Vitesse 2 -0.4
Utrecht 1 VVV 0 +0.2
PSV 0 Groningen 0 -0.1
Sparta 2 Heracles 5 -0.1
Excelsior 1 Ajax 2 +0.1
Points
Chance Will Win Championship