How are these numbers calculated?

Big Games

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

Week of 11/26100.0*Serie B100.0*Average seed
Coritiba 0 Vitoria 1 +9.3
-0.2
America-MG 2 Sport Recife 2 +1.1
-0.5
Week of 12/4100.0*Serie B100.0*Average seed
Fluminense 1 Internacional 1 No
+0.2
Sport Recife 2 Figueirense 0 No
+1.0
Vitoria 1 Palmeiras 2 -0.7
+0.1
Ponte Preta 2 Coritiba 0 +0.1
Points
Chance Will Win Championship