How are these numbers calculated?

Big Games

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

Week of 11/29100.0*Serie B100.0*Average seed
Vasco da Gama 1 Figueirense 0 No
+0.9
Fluminense 2 Sao Caetano 1 +0.1
-0.2
Juventude 1 Atletico-MG 0 +0.1
-0.2
Fortaleza 5 Parana 3 -0.1
Ponte Preta 1 Sao Paulo 2 +0.0
Vitoria 1 Coritiba 0 -0.1
Cruzeiro 2 Paysandu 1 +0.1
Week of 12/6100.0*Serie B100.0*Average seed
Atletico-PR 2 Vasco da Gama 2 No
+0.1
Juventude 2 Sao Caetano 1 -0.3
Guarani 2 Paysandu 1 +0.1
Fortaleza 2 Coritiba 2 +0.1
Cruzeiro 5 Fluminense 2 +0.1
Week of 12/13100.0*Serie B100.0*Average seed
Fluminense 1 Juventude 0 +0.4
Vasco da Gama 1 Santos 1 +0.1
Points
Chance Will Win Championship