How are these numbers calculated?

Big Games

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

Week of 5/7100.0*Average seed
Heracles 4 ADO 0 -0.4
Roda 1 Willem II 0 +0.2
Excelsior 3 Feyenoord 0 -0.2
Zwolle 2 Heerenveen 1 -0.2
Groningen 1 PSV 1 -0.0
Week of 5/14100.0*Average seed
ADO 4 Excelsior 1 +1.4
Willem II 1 Ajax 3 +0.1
PSV 4 Zwolle 1 +0.1
Vitesse 3 Roda 0 +0.0
Points
Chance Will Win Championship