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
Portuguesa 0 Santos 2 +0.8
Mogi Mirim 3 Paulista 1 -0.2
Palmeiras 0 Mirassol 1 +0.1
Catanduvense 1 Guarani 2 -0.1
Ituano 2 Sao Paulo 4 -0.1
Oeste 0 Corinthians 3 -0.1
Guaratingueta 2 Ponte Preta 1 +0.1
Week of 4/7100.0*Average seed
Sao Caetano 2 Santos 1 -0.4
Corinthians 1 Paulista 0 -0.1
Sao Paulo 2 Mogi Mirim 0 +0.1
Guarani 3 Palmeiras 1 +0.1
Week of 4/15100.0*Average seed
Santos 5 Catanduvense 0 +0.7
Botafogo-SP 2 Guarani 1 +0.3
Palmeiras 2 Comercial RP 2 +0.2
Mogi Mirim 2 XV Piracicaba 2 +0.1
Points
Chance Will Make Playoffs