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*Ligue 2100.0*Average seed
Guingamp 4 Dijon 0 +16.9
-0.7
Toulouse 0 Caen 1 +10.4
-0.2
Nancy 0 Monaco 3 -1.5
+0.0
PSG 5 Bastia 0 -1.3
+0.0
Lorient 1 Angers 1 -0.5
+0.0
Lille 0 Metz 2 -0.1
Week of 5/13100.0*Ligue 2100.0*Average seed
Dijon 2 Nancy 0 -30.3
+0.9
Caen 0 Rennes 1 -9.6
+0.2
Bastia 2 Lorient 0 -9.0
-0.0
Week of 5/17100.0*Ligue 2100.0*Average seed
PSG 1 Caen 1 +6.8
-0.2
Lorient 1 Bordeaux 1 -3.6
+0.1
Marseille 1 Bastia 0 -3.4
+0.1
Toulouse 0 Dijon 0 -2.1
-0.1
Angers 2 Montpellier 0 +0.2
Points
Chance Will Win Championship