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
St. Truiden 1 Mons 1 -0.2
Roeselare 2 Mouscron 1 -0.1
Westerlo 1 Lokeren 2 -0.1
Standard Liège 3 Dender 0 +0.0
Week of 5/9100.0*Average seed
Mons 1 Anderlecht 2 -0.3
Dender 0 Gent 3 +0.3
Points
Chance Will Win Championship