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
Angers 2 Nîmes 3 -22.0
+0.8
Auxerre 2 Le Havre 1 +8.1
-0.2
Istres 1 Lens 6 -6.1
+0.2
Niort 1 Auxerre 0 -5.0
+0.2
Nancy 3 Istres 1 -5.0
+0.2
Laval 1 Nancy 0 +4.8
-0.2
Nîmes 1 Brest 1 +3.7
-0.2
Dijon 2 Châteauroux 1 -2.1
+0.1
Le Havre 2 Troyes 1 +0.2
Châteauroux 1 Laval 1 -0.2
Arles-Avignon 2 Créteil 1 +0.2
Week of 5/9100.0*Down to National100.0*Average seed
Nîmes 2 Laval 1 -21.2
+1.3
Arles-Avignon 0 Auxerre 2 +10.4
-0.2
Châteauroux 0 Créteil 2 -6.6
+0.2
Istres 2 Dijon 4 -2.0
+0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Down to National100.0*Average seed
Laval vs Metz+3.0NoNo
-0.4+0.2+0.2
Créteil vs Nîmes+3.0NoNo
-1.1-0.6+1.5
Brest vs ChâteaurouxNoNo+3.0
+0.1+0.1-0.2
Auxerre vs Nancy+1.4+0.3No
-0.4+0.1+0.3
Tours vs Clermont-Ferrand+0.1+0.1-0.2
Le Havre vs Arles-Avignon+0.0-0.1+0.0

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChancePromoted toChance will finish season at seedDown to
TPW-D-Lwins titleLigue 11234567891011121314151617181920NationalCount
461-0-0NoNo57394No7,169,474,645
440-1-0NoNo49428No6,036,473,578
430-0-1NoNo26442554.7%7,169,721,177
Total:NoNo201425281121.6%20,375,669,400
Points
Chance Will Win Championship