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
Germinal 4 Mechelen 3 -0.2
Roeselare 2 Mouscron 1 +0.2
Westerlo 1 Lokeren 2 -0.1
Week of 5/9100.0*Average seed
Mechelen 2 St. Truiden 3 -0.9
Mouscron 1 Germinal 0 -0.2
Lokeren 3 Roeselare 0 -0.1
Points
Chance Will Win Championship