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
Roeselare 2 Mouscron 1 -0.5
Westerlo 1 Lokeren 2 -0.2
Germinal 4 Mechelen 3 +0.1
Week of 5/9100.0*Average seed
Mouscron 1 Germinal 0 +0.8
Mechelen 2 St. Truiden 3 +0.5
Lokeren 3 Roeselare 0 -0.1
Points
Chance Will Win Championship