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
Aurillac 20 Colomiers 13 +3.0
+1.3
Bourgoin 14 Montauban 20 -0.1
-0.2
Mont-de-Marsan 32 Béziers 18 -0.0
Biarritz 42 Agen 18 +0.0
Albi 34 Carcassonne 22 +0.0
Week of 11/29100.0*Promoted to Top 14100.0*Average seed
Mont-de-Marsan 26 Albi 17 -4.7
-0.4
Perpignan 15 Aurillac 15 -2.7
+0.4
Colomiers 24 Bourgoin 17 -2.5
-0.2
Montauban 22 Pau 24 +0.1
+0.3
Béziers 16 Carcassonne 12 -0.2
Week of 12/7100.0*Promoted to Top 14100.0*Average seed
Narbonne 7 Biarritz 20 -0.5
Games Above .500
Chance Will Win Championship