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 +2.2
-0.0
LeÃ;µes 28 XVmarÃ;§o 12 -1.0
Week of 11/11100.0*Campeonato Nacional de Rugby - Segunda100.0*Average seed
Destecheu 14 Fortaleza 56 +21.1
-0.4
UBR 34 Ferroviarios 56 -14.1
+0.2
Riolagen 21 LeÃ;µes 14 +3.1
-0.2
XVmarÃ;§o 21 Werklagger 28 -1.6
+0.1
Week of 11/18100.0*Campeonato Nacional de Rugby - Segunda100.0*Average seed
LeÃ;µes 38 Destecheu 21 Yes
-0.5
Fortaleza 56 UBR 42 -12.8
+0.2
Riolagen 0 XVmarÃ;§o 34 -12.8
+0.3
Points
Chance Will Win Championship