How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/22100.0*Promoted to Top 14100.0*Average seed
Biarritz 42 Agen 18 +3.1
+0.8
Bourgoin 14 Montauban 20 -0.2
-0.2
Albi 34 Carcassonne 22 -0.2
-0.0
Aurillac 20 Colomiers 13 -0.1
-0.1
Pau 22 Perpignan 19 +0.1
+0.1
Mont-de-Marsan 32 Béziers 18 -0.1
Week of 11/29100.0*Promoted to Top 14100.0*Average seed
Béziers 16 Carcassonne 12 -1.0
-0.2
Montauban 22 Pau 24 +0.8
+0.2
Perpignan 15 Aurillac 15 -0.5
-0.7
Mont-de-Marsan 26 Albi 17 -0.2
Colomiers 24 Bourgoin 17 -0.1
Week of 12/7100.0*Promoted to Top 14100.0*Average seed
Narbonne 7 Biarritz 20 +12.4
+2.0
Games Above .500
Chance Will Win Championship