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 -18.1
+0.4
Reims 1 Evian 0 -3.9
+0.1
Monaco 1 Guingamp 1 +3.5
-0.1
Paris SG 1 Rennes 2 +0.7
-0.1
Week of 5/10100.0*Down to Ligue 2100.0*Average seed
Rennes 1 Sochaux 2 -30.3
+0.8
Evian 2 Nice 0 +16.0
-0.2
Guingamp 2 Toulouse 0 +5.8
-0.2
Week of 5/17100.0*Down to Ligue 2100.0*Average seed
Sochaux 0 Evian 3 Yes
-1.2
Nice 0 Lyon 1 +0.3
Marseille 1 Guingamp 0 +0.2
Paris SG 4 Montpellier 0 +0.2
Points
Chance Will Win Championship