How are these numbers calculated?

Big Games

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

Week of 3/6100.0*Chance in playoffs100.0*Average seed
Mechelen 2 Genk 1 -4.0
-1.0
Cercle Brugge 4 Lokeren 0 -0.2
Germinal 1 Zulte Waregem 1 +0.0
Week of 3/21100.0*Chance in playoffs100.0*Average seed
Germinal 1 Club Brugge 4 +0.2
Cercle Brugge 3 St. Truiden 1 -0.2
Genk 1 Kortrijk 1 -0.2
Roeselare 0 Westerlo 0 +0.1
Points
Chance Will Make Playoffs