How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Serie B100.0*Average seed
Santos 1 Fluminense 0 -3.3
+0.2
Bahia 1 Portuguesa 0 +3.1
-0.1
Vasco da Gama 2 Cruzeiro 1 +2.9
-0.1
Criciuma 1 Vitoria 1 +1.5
-0.4
Internacional 0 Coritiba 0 -0.9
+0.1
Ponte Preta 1 Gremio 1 -0.5
Flamengo 1 Corinthians 0 +0.2
-0.1
Week of 11/30100.0*Serie B100.0*Average seed
Criciuma 1 Sao Paulo 0 -16.7
+1.3
Vasco da Gama 2 Nautico 0 +6.2
-0.2
Coritiba 2 Botafogo 1 +6.2
-0.3
Fluminense 2 Atletico-MG 2 -3.0
+0.1
Ponte Preta 0 Portuguesa 2 +1.2
-0.2
Cruzeiro 1 Bahia 2 +0.3
-0.2
Corinthians 0 Internacional 0 -0.0
Week of 12/7100.0*Serie B100.0*Average seed
Botafogo 3 Criciuma 0 -1.3
Sao Paulo 0 Coritiba 1 -0.4
Flamengo 1 Cruzeiro 1 +0.1
Bahia 1 Fluminense 2 +0.1
Atletico-PR 5 Vasco da Gama 1 +0.1
Portuguesa 0 Gremio 0 +0.0
Internacional 0 Ponte Preta 0 +0.0
Points
Chance Will Win Championship