How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Libertadores*100.0*Average seed
Inter 0 Corinthians 2 No
-1.0
Sao Paulo 2 Nautico 1 No
Sport 2 Botafogo 0 +0.1
Fluminense 0 Cruzeiro 2 -0.1
Flamengo 1 Palmeiras 1 +0.1
Bahia 1 Ponte Preta 0 +0.0
Week of 11/25100.0*Libertadores*100.0*Average seed
Inter 0 Portuguesa 2 -1.1
Cruzeiro 2 Coritiba 1 -0.2
Botafogo 2 Atletico-MG 3 +0.1
Week of 12/1100.0*Libertadores*100.0*Average seed
Santos 3 Palmeiras 1 -0.4
Flamengo 2 Botafogo 2 +0.3
Gremio 0 Inter 0 -0.3
Atletico-MG 3 Cruzeiro 2 +0.0
Points
Chance Will Win Championship