How are these numbers calculated?

Big Games

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

Week of 12/4100.0*Average seed
Flamengo 0 Coritiba 0 -0.2
Guarani 2 Figueirense 1 +0.1
Internacional 2 Cruzeiro 0 -0.1
Fluminense 1 Ponte Preta 0 -0.1
Week of 12/11100.0*Average seed
Coritiba 1 Goias 0 +0.6
Figueirense 1 Juventude 0 -0.2
Cruzeiro 4 Vitoria 0 -0.1
Parana 0 Fluminense 1 +0.0
Week of 12/19100.0*Average seed
Vitoria 1 Ponte Preta 2 -0.3
Corinthians 5 Figueirense 2 +0.3
Criciuma 3 Coritiba 3 -0.2
Points
Chance Will Win Championship