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
XV Piracicaba 2 Comercial RP 1 -16.1
+0.7
Guaratingueta 2 Ponte Preta 1 +8.9
-0.3
Catanduvense 1 Guarani 2 -8.4
+0.1
Linense 1 Botafogo-SP 3 +6.6
-0.2
Portuguesa 0 Santos 2 -0.8
+0.0
Palmeiras 0 Mirassol 1 +0.1
Week of 4/7100.0*Serie A2100.0*Average seed
XV Piracicaba 2 Ponte Preta 1 -41.3
+1.3
Comercial RP 2 Guaratingueta 1 -9.4
+0.3
Catanduvense 2 Botafogo-SP 4 +4.9
-0.1
Portuguesa 2 Linense 2 +1.2
-0.0
Week of 4/15100.0*Serie A2100.0*Average seed
Botafogo-SP 2 Guarani 1 +52.2
-0.6
Mogi Mirim 2 XV Piracicaba 2 -4.7
-0.2
Mirassol 4 Portuguesa 2 -2.3
+0.2
Guaratingueta 2 Sao Caetano 2 -1.1
Linense 2 Sao Paulo 1 -0.1
Paulista 2 Bragantino 0 -0.1
Oeste 4 Ituano 2 +0.1
Points
Chance Will Make Playoffs