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
Vasco da Gama 2 Cruzeiro 1 +5.6
-0.3
Bahia 1 Portuguesa 0 +3.3
-0.1
Santos 1 Fluminense 0 -2.5
+0.1
Internacional 0 Coritiba 0 -1.8
Criciuma 1 Vitoria 1 -0.5
+0.0
Flamengo 1 Corinthians 0 +0.3
-0.1
Ponte Preta 1 Gremio 1 -0.1
+0.0
Week of 11/30100.0*Serie B100.0*Average seed
Coritiba 2 Botafogo 1 -44.5
+1.4
Fluminense 2 Atletico-MG 2 -3.2
+0.1
Criciuma 1 Sao Paulo 0 +3.0
-0.2
Vasco da Gama 2 Nautico 0 +2.7
-0.2
Cruzeiro 1 Bahia 2 +2.5
-0.1
Ponte Preta 0 Portuguesa 2 +1.1
-0.1
Week of 12/7100.0*Serie B100.0*Average seed
Bahia 1 Fluminense 2 +35.6
-0.5
Sao Paulo 0 Coritiba 1 No
+2.4
Atletico-PR 5 Vasco da Gama 1 -12.5
+0.2
Internacional 0 Ponte Preta 0 +0.1
Flamengo 1 Cruzeiro 1 -0.1
Portuguesa 0 Gremio 0 -0.0
Botafogo 3 Criciuma 0 +0.0
Points
Chance Will Win Championship