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 +2.1
-0.4
Linense 1 Botafogo-SP 3 +0.1
-0.2
Catanduvense 1 Guarani 2 -0.1
Guaratingueta 2 Ponte Preta 1 -0.1
Week of 4/7100.0*Serie A2100.0*Average seed
Comercial RP 2 Guaratingueta 1 +0.1
Catanduvense 2 Botafogo-SP 4 Yes
XV Piracicaba 2 Ponte Preta 1 Yes
Week of 4/15100.0*Serie A2100.0*Average seed
Palmeiras 2 Comercial RP 2 -0.2
Guaratingueta 2 Sao Caetano 2 -0.1
Santos 5 Catanduvense 0 +0.0
Points
Chance Will Make Playoffs