How are these numbers calculated?

Big Games

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

Week of 11/4100.0*Campeonato Nacional de Rugby - Segunda100.0*Average seed
CCP 24 UBR 24 +1.7
-0.1
LeÃ;µes 28 XVmarÃ;§o 12 +0.8
-0.3
Werklagger 10 AtlÃ;©ticoWal 34 +0.1
AEV 10 UDR 31 -0.1
Week of 11/11100.0*Campeonato Nacional de Rugby - Segunda100.0*Average seed
Riolagen 21 LeÃ;µes 14 +9.9
-0.2
XVmarÃ;§o 21 Werklagger 28 +5.9
-0.6
UBR 34 Ferroviarios 56 -2.3
+0.1
Destecheu 14 Fortaleza 56 -1.3
-0.1
Week of 11/18100.0*Campeonato Nacional de Rugby - Segunda100.0*Average seed
Fortaleza 56 UBR 42 No
+0.2
Riolagen 0 XVmarÃ;§o 34 No
+0.7
Points
Chance Will Win Championship