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
NAC Breda 0 Twente 2 +0.3
Roda JC 3 Willem II 2 +0.2
FC Groningen 3 Sparta 1 -0.1
Points
Chance Will Win Championship