How are these numbers calculated?

Big Games

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

Week of 3/31100.0*Average seed
Oeste 0 Corinthians 3 +0.4
Palmeiras 0 Mirassol 1 +0.2
Ituano 2 Sao Paulo 4 -0.1
Portuguesa 0 Santos 2 -0.1
Week of 4/7100.0*Average seed
Sao Paulo 2 Mogi Mirim 0 -0.2
Corinthians 1 Paulista 0 +0.2
Sao Caetano 2 Santos 1 +0.1
Guarani 3 Palmeiras 1 +0.0
Week of 4/15100.0*Average seed
Linense 2 Sao Paulo 1 +0.5
Ponte Preta 1 Corinthians 2 +0.2
Points
Chance Will Make Playoffs