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
Laval 1 Nancy 0 -21.3
+0.8
Auxerre 2 Le Havre 1 +6.8
-0.2
Angers 2 Nîmes 3 +6.1
-0.2
Istres 1 Lens 6 -4.8
+0.1
Niort 1 Auxerre 0 -3.1
+0.1
Nancy 3 Istres 1 -3.0
+0.1
Châteauroux 1 Laval 1 -2.6
+0.0
Dijon 2 Châteauroux 1 -0.8
+0.1
Nîmes 1 Brest 1 -0.8
+0.0
Arles-Avignon 2 Créteil 1 +0.1
Le Havre 2 Troyes 1 -0.0
Week of 5/9100.0*Down to National100.0*Average seed
Arles-Avignon 0 Auxerre 2 +12.3
-0.3
Nîmes 2 Laval 1 +11.6
-0.8
Châteauroux 0 Créteil 2 -6.9
+0.2
Istres 2 Dijon 4 -0.8
Clermont-Ferrand 0 Troyes 3 +0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Down to National100.0*Average seed
Brest vs ChâteaurouxNo-3.0+48.8
+0.2+0.1-0.6
Laval vs MetzNo-4.1+11.2
+1.0-0.1-0.5
Auxerre vs Nancy+2.0+2.0-3.6
-0.3-0.0+0.3
Créteil vs Nîmes+0.1-0.1-0.1

What If

Chances based on how well the Laval finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChancePromoted toChance will finish season at seedDown to
TPW-D-Lwins titleLigue 11234567891011121314151617181920NationalCount
441-0-0NoNo414613No14,988,498,454
420-1-0NoNo29591212.0%18,326,373,678
410-0-1NoNo732727.328,545,384,068
Total:NoNo1020541616.2%61,860,256,200
Points
Chance Will Win Championship