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 -22.9
+0.9
Bahia 1 Portuguesa 0 +4.5
-0.1
Santos 1 Fluminense 0 -3.3
+0.1
Internacional 0 Coritiba 0 +0.5
-0.0
Flamengo 1 Corinthians 0 +0.3
-0.0
Ponte Preta 1 Gremio 1 -0.3
+0.0
Criciuma 1 Vitoria 1 -0.1
Week of 11/30100.0*Serie B100.0*Average seed
Vasco da Gama 2 Nautico 0 -19.1
+0.6
Coritiba 2 Botafogo 1 +14.1
-0.3
Fluminense 2 Atletico-MG 2 -5.7
+0.1
Criciuma 1 Sao Paulo 0 +5.5
-0.2
Ponte Preta 0 Portuguesa 2 +1.8
-0.1
Cruzeiro 1 Bahia 2 +1.1
-0.1
Week of 12/7100.0*Serie B100.0*Average seed
Atletico-PR 5 Vasco da Gama 1 Yes
-0.6
Sao Paulo 0 Coritiba 1 +4.9
-0.2
Bahia 1 Fluminense 2 +4.9
-0.5
Botafogo 3 Criciuma 0 +0.1
Internacional 0 Ponte Preta 0 -0.0
Points
Chance Will Win Championship