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
Rennes 2 Toulouse 1 +0.6
Valenciennes 1 Nice 2 -0.3
Lille 2 Lens 1 -0.1
Metz 1 Lorient 2 -0.1
Le Mans UC72 0 Marseille 0 +0.0
PSG 1 Saint-Étienne 1 -0.0
Week of 5/17100.0*Average seed
Nancy 2 Rennes 3 +1.4
Nice 3 Caen 1 -0.3
Metz 4 Le Mans UC72 3 +0.3
Saint-Étienne 4 Monaco 0 -0.1
Lorient 1 Lille 1 +0.0
Points
Chance Will Win Championship