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*Promoted to Ligue 1100.0*Average seed
Laval 1 Nancy 0 -17.1
-0.5
Nancy 3 Istres 1 +9.7
+0.4
Istres 1 Lens 6 -8.0
-0.1
Brest 0 Caen 1 -6.2
-0.1
Caen 6 Bastia 1 -4.3
-0.1
Lens 0 Angers 0 +1.8
Niort 1 Auxerre 0 -1.4
-0.1
Créteil 1 Niort 1 +1.2
+0.0
Nîmes 1 Brest 1 +0.1
+0.0
Angers 2 Nîmes 3 +0.1
+0.1
Week of 5/9100.0*Promoted to Ligue 1100.0*Average seed
Lens 0 Brest 1 +4.4
Nancy 3 Angers 1 +2.2
+0.3
Caen 1 Tours 3 +2.0
Niort 1 Bastia 1 +0.1
+0.2
Istres 2 Dijon 4 -0.1
If winner is:HomeDrawAway
Week of 5/16100.0*Promoted to Ligue 1100.0*Average seed
Auxerre vs NancyNoNo+21.5
-0.3-0.1+0.4
Bastia vs Lens+24.1-2.8-9.0
+0.3-0.0-0.1
Dijon vs Caen+2.9-2.0-2.0
Troyes vs Niort+0.1+0.1-0.3

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChancePromoted toChance will finish season at seedDown to
TPW-D-Lwins titleLigue 11234567891011121314151617181920NationalCount
631-0-0No33.8%43066No22,475,346,493
610-1-0NoNo8812No18,326,316,529
600-0-1NoNo7030No21,058,593,178
Total:No12.3%1117414No61,860,256,200
Points
Chance Will Win Championship