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*Chance wins title100.0*Promoted to Ligue 1100.0*Average seed
Brest 0 Caen 1 +0.1
+14.0
+0.4
Troyes 0 Metz 1 No
Caen 6 Bastia 1 +9.3
+0.2
Lens 0 Angers 0 +1.2
+0.1
Laval 1 Nancy 0 +6.1
+0.1
Nancy 3 Istres 1 -4.9
-0.1
Istres 1 Lens 6 -3.7
-0.2
Niort 1 Auxerre 0 -2.9
-0.1
Créteil 1 Niort 1 +1.8
+0.0
Angers 2 Nîmes 3 +0.2
Nîmes 1 Brest 1 +0.1
Week of 5/9100.0*Chance wins title100.0*Promoted to Ligue 1100.0*Average seed
Caen 1 Tours 3 -4.2
-0.3
Nancy 3 Angers 1 -0.5
Niort 1 Bastia 1 +0.4
Lens 0 Brest 1 +0.2
+0.3
If winner is:HomeDrawAway
Week of 5/16100.0*Chance wins title100.0*Promoted to Ligue 1100.0*Average seed
Auxerre vs NancyYesYes-4.0
+0.0+0.0-0.1
Dijon vs Caen-3.2YesYes
-0.2-0.1+0.4
Bastia vs LensYes+0.1-1.0
+0.4+0.3-0.3

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChancePromoted toChance will finish season at seedDown to
TPW-D-Lwins titleLigue 11234567891011121314151617181920NationalCount
661-0-0NoYes100No18,115,767,074
640-1-0NoYes5149No18,326,246,021
630-0-1No94.5%41545No25,418,243,105
Total:No97.7%61372No61,860,256,200
Points
Chance Will Win Championship