How are these numbers calculated?

Big Games

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

Week of 5/10100.0*Average seed
Lyon 1 Nancy 0 -0.1
Le Mans UC72 0 Marseille 0 +0.1
Week of 5/17100.0*Average seed
Nancy 2 Rennes 3 -0.4
Marseille 4 Strasbourg 3 -0.1
Points
Chance Will Win Championship