How are these numbers calculated?

Big Games

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

Week of 5/4100.0*Down to Ligue 2100.0*Average seed
Sochaux 2 Nice 0 +0.1
-1.0
Reims 1 Evian 0 No
+0.0
Paris SG 1 Rennes 2 -0.4
Lorient 1 Ajaccio 0 -0.1
St-Etienne 2 Montpellier 0 +0.1
Monaco 1 Guingamp 1 -0.0
Bastia 1 Lille 1 +0.0
Week of 5/10100.0*Down to Ligue 2100.0*Average seed
Evian 2 Nice 0 -0.9
Montpellier 0 Bastia 2 +0.2
Rennes 1 Sochaux 2 +0.1
Guingamp 2 Toulouse 0 -0.1
Nantes 1 St-Etienne 3 +0.1
Lyon 0 Lorient 1 -0.1
Week of 5/17100.0*Down to Ligue 2100.0*Average seed
Nice 0 Lyon 1 -1.7
Reims 1 Rennes 3 -0.3
Sochaux 0 Evian 3 -0.3
Marseille 1 Guingamp 0 +0.2
Paris SG 4 Montpellier 0 +0.2
Bastia 0 Nantes 0 -0.1
Points
Chance Will Win Championship