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*Average seed
Flamengo 0 Figueirense 2 +1.5
Parana 1 Internacional 0 -0.2
Sao Caetano 0 Vasco da Gama 1 -0.1
Botafogo 2 Goias 2 +0.1
Corinthians 1 Fluminense 1 +0.1
Cruzeiro 1 Santos 1 +0.0
Sao Paulo 1 Atletico-PR 1 -0.0
Week of 11/26100.0*Average seed
Atletico-PR 1 Figueirense 4 +0.7
Sao Paulo 2 Cruzeiro 0 +0.1
Botafogo 0 Corinthians 0 +0.1
Sao Caetano 0 Parana 2 -0.1
Gremio 3 Flamengo 0 +0.1
Goias 3 Ponte Preta 0 -0.1
Week of 12/2100.0*Average seed
Figueirense 0 Vasco da Gama 0 -0.3
Points
Chance Will Win Championship