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*Average seed
Flamengo 1 Corinthians 0 -0.9
Santos 1 Fluminense 0 -0.2
Atletico-MG 4 Goias 1 -0.1
Sao Paulo 1 Botafogo 1 +0.0
Bahia 1 Portuguesa 0 +0.0
Internacional 0 Coritiba 0 +0.0
Week of 11/30100.0*Average seed
Vitoria 4 Flamengo 2 +0.2
Cruzeiro 1 Bahia 2 -0.1
Criciuma 1 Sao Paulo 0 +0.1
Santos 2 Atletico-PR 1 -0.1
Ponte Preta 0 Portuguesa 2 -0.1
Corinthians 0 Internacional 0 -0.1
Week of 12/7100.0*Average seed
Nautico 1 Corinthians 0 -1.1
Portuguesa 0 Gremio 0 +0.4
Bahia 1 Fluminense 2 +0.4
Internacional 0 Ponte Preta 0 +0.4
Flamengo 1 Cruzeiro 1 +0.2
Points
Chance Will Win Championship