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
Catanduvense 1 Guarani 2 +0.5
Mogi Mirim 3 Paulista 1 -0.2
Guaratingueta 2 Ponte Preta 1 +0.2
Palmeiras 0 Mirassol 1 +0.1
Bragantino 2 Sao Caetano 0 -0.1
Portuguesa 0 Santos 2 -0.1
Week of 4/7100.0*Average seed
Guarani 3 Palmeiras 1 +0.8
Sao Paulo 2 Mogi Mirim 0 +0.1
Sao Caetano 2 Santos 1 +0.1
Bragantino 1 Oeste 4 +0.1
Week of 4/15100.0*Average seed
Botafogo-SP 2 Guarani 1 -0.9
Palmeiras 2 Comercial RP 2 +0.3
Santos 5 Catanduvense 0 -0.2
Mogi Mirim 2 XV Piracicaba 2 +0.2
Points
Chance Will Make Playoffs