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
Sport Recife 3 Atletico-MG 0 -0.9
Vitoria 4 Gremio 2 -0.2
Internacional 0 Fluminense 2 +0.0
Week of 11/30100.0*Average seed
Atletico-MG 0 Santos 0 -0.2
Botafogo 1 Figueirense 3 +0.1
Vitoria 0 Palmeiras 0 +0.1
Portuguesa 2 Sport Recife 2 +0.1
Nautico 2 Atletico-PR 1 +0.0
Sao Paulo 1 Fluminense 1 +0.0
Week of 12/7100.0*Average seed
Gremio 2 Atletico-MG 0 -0.6
Vasco da Gama 0 Vitoria 2 -0.2
Sport Recife 4 Coritiba 3 -0.2
Palmeiras 0 Botafogo 1 -0.1
Points
Chance Will Win Championship