How are these numbers calculated?

Big Games

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

Week of 5/5100.0*Average seed
Lyon 3 Nantes 2 +0.2
Marseille 2 Nice 1 -0.1
Saint-Étienne 2 Bordeaux 2 +0.0
Week of 5/13100.0*Average seed
Montpellier 1 Lyon 3 +0.1
Bordeaux 1 Marseille 1 +0.1
Week of 5/17None
Points
Chance Will Win Championship