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*Serie A2100.0*Average seed
Catanduvense 1 Guarani 2 +13.1
-0.4
Guaratingueta 2 Ponte Preta 1 +10.0
-0.3
XV Piracicaba 2 Comercial RP 1 +7.2
-0.1
Linense 1 Botafogo-SP 3 +3.5
-0.2
Portuguesa 0 Santos 2 -0.1
+0.0
Bragantino 2 Sao Caetano 0 -0.1
Palmeiras 0 Mirassol 1 +0.1
Week of 4/7100.0*Serie A2100.0*Average seed
Catanduvense 2 Botafogo-SP 4 Yes
-1.0
XV Piracicaba 2 Ponte Preta 1 +8.4
-0.3
Comercial RP 2 Guaratingueta 1 -6.8
+0.1
Sao Caetano 2 Santos 1 +0.1
Portuguesa 2 Linense 2 -0.1
Week of 4/15100.0*Serie A2100.0*Average seed
Palmeiras 2 Comercial RP 2 +0.1
Santos 5 Catanduvense 0 -0.1
Guaratingueta 2 Sao Caetano 2 +0.0
Points
Chance Will Make Playoffs