How are these numbers calculated?

Big Games

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

Week of 10/25100.0*Serie B100.0*Average seed
Fluminense 2 Criciuma 0 -8.5
+0.6
Coritiba 0 Atletico-PR 2 +1.1
-0.1
Criciuma 3 Vasco da Gama 4 -0.8
Sport Recife 2 Bragantino 1 -0.5
Portuguesa 1 Goias 2 +0.5
Guarani 0 Juventude 0 -0.2
+0.0
Santos 3 Bahia 1 -0.2
Sao Paulo 7 Uniao Sao Joao 1 +0.1
+0.1
Week of 11/1100.0*Serie B100.0*Average seed
Juventude 1 Fluminense 1 +9.9
-0.4
Corinthians 1 Flamengo 0 Yes
-0.1
Corinthians 0 Sport Recife 1 -2.5
+0.1
Bragantino 1 Uniao Sao Joao 0 +2.1
-0.0
Atletico-PR 2 Internacional 1 +2.1
-0.1
Uniao Sao Joao 0 Guarani 1 +1.6
-0.2
Gremio 1 Guarani 4 +1.4
-0.2
Vasco da Gama 3 Bahia 1 -0.7
+0.0
Cruzeiro 2 Botafogo 3 -0.6
Flamengo 1 Coritiba 0 -0.5
Portuguesa 2 Criciuma 2 +0.4
-0.0
Week of 11/8100.0*Serie B100.0*Average seed
Fluminense 0 Gremio 2 -0.3
Criciuma 1 Atletico-PR 1 -0.1
Guarani 3 Vasco da Gama 2 -0.1
Points
Chance Will Make Playoffs