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
Internacional 0 Fluminense 2 -0.7
Week of 11/30100.0*Average seed
Internacional 1 Cruzeiro 0 +1.2
Botafogo 1 Figueirense 3 +0.2
Coritiba 0 Vasco da Gama 2 +0.2
Flamengo 3 Goias 3 +0.1
Portuguesa 2 Sport Recife 2 +0.1
Vitoria 0 Palmeiras 0 +0.0
Atletico-MG 0 Santos 0 +0.0
Week of 12/7100.0*Average seed
Figueirense 3 Internacional 1 -0.3
Sport Recife 4 Coritiba 3 +0.2
Goias 0 Sao Paulo 1 +0.1
Points
Chance Will Win Championship