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
Nancy 3 Le Mans UC72 2 +0.6
Lille 3 Nancy 1 -0.3
Toulouse 0 Lille 2 +0.2
Lens 1 Grenoble 1 +0.1
Saint-Étienne 1 Lens 4 -0.1
Bordeaux 1 Toulouse 0 +0.1
PSG 2 Valenciennes 2 +0.1
Valenciennes 0 Lorient 0 +0.0
Lorient 2 Monaco 2 -0.0
Sochaux 0 Montpellier 1 +0.0
Boulogne 3 Nice 3 +0.0
Nice 1 Bordeaux 1 +0.0
Week of 5/8100.0*Average seed
Monaco 2 Nancy 1 -0.5
Le Mans UC72 1 PSG 0 +0.2
Saint-Étienne 0 Toulouse 1 -0.1
Valenciennes 2 Lyon 2 -0.1
Auxerre 0 Lens 0 -0.0
Week of 5/15100.0*Average seed
PSG 1 Montpellier 3 +0.4
Nancy 1 Valenciennes 1 -0.4
Lens 4 Bordeaux 3 -0.3
Toulouse 0 Monaco 0 +0.1
Points
Chance Will Win Championship