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*Down to National100.0*Average seed
Auxerre 2 Le Havre 1 -24.6
+0.7
Niort 1 Auxerre 0 +11.4
-0.4
Angers 2 Nîmes 3 +9.7
-0.2
Laval 1 Nancy 0 +6.9
-0.2
Istres 1 Lens 6 -5.6
+0.2
Nancy 3 Istres 1 -3.6
+0.1
Nîmes 1 Brest 1 -1.2
+0.0
Dijon 2 Châteauroux 1 -1.0
+0.1
Châteauroux 1 Laval 1 +0.6
+0.0
Arles-Avignon 2 Créteil 1 +0.1
Le Havre 2 Troyes 1 +0.1
Week of 5/9100.0*Down to National100.0*Average seed
Arles-Avignon 0 Auxerre 2 -41.6
+1.1
Châteauroux 0 Créteil 2 -11.8
+0.2
Nîmes 2 Laval 1 +2.2
Istres 2 Dijon 4 -0.7
+0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Down to National100.0*Average seed
Brest vs ChâteaurouxNoNo+17.9
+0.1+0.1-0.4
Auxerre vs NancyNo-2.6+6.0
+1.1-0.3-0.8
Laval vs Metz+4.7+2.7No
-0.4-0.1+0.3
Créteil vs Nîmes-0.1+0.1+0.1
+0.1+0.0-0.3
Tours vs Clermont-Ferrand+0.1-0.1-0.1
Le Havre vs Arles-Avignon-0.0-0.0+0.1

What If

Chances based on how well Auxerre finishes out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChancePromoted toChance will finish season at seedDown to
TPW-D-Lwins titleLigue 11234567891011121314151617181920NationalCount
451-0-0NoNo2236114No21,058,593,178
430-1-0NoNo9642521.6%18,326,316,529
420-0-1NoNo37521010.222,475,346,493
Total:NoNo1823372644.2%61,860,256,200
Points
Chance Will Win Championship