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*Chance in playoffs100.0*Serie A2100.0*Average seed
Linense 1 Botafogo-SP 3 Out
+0.5
-1.1
Bragantino 2 Sao Caetano 0 -1.4
-0.1
+0.2
Guaratingueta 2 Ponte Preta 1 +0.4
+0.2
Mogi Mirim 3 Paulista 1 +0.2
+0.2
Ituano 2 Sao Paulo 4 +0.1
+0.2
Oeste 0 Corinthians 3 +0.1
+0.2
Palmeiras 0 Mirassol 1 -0.2
Catanduvense 1 Guarani 2 -0.2
XV Piracicaba 2 Comercial RP 1 +0.2
Portuguesa 0 Santos 2 +0.1
Week of 4/7100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Portuguesa 2 Linense 2 -0.5
-0.2
XV Piracicaba 2 Ponte Preta 1 +0.1
-0.1
Sao Caetano 2 Santos 1 +0.1
-0.3
Bragantino 1 Oeste 4 +0.1
-0.2
Comercial RP 2 Guaratingueta 1 No
+0.1
Ituano 1 Mirassol 1 +0.1
Corinthians 1 Paulista 0 +0.3
Week of 4/15100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Linense 2 Sao Paulo 1 +2.2
Paulista 2 Bragantino 0 -0.3
Mogi Mirim 2 XV Piracicaba 2 +0.1
Guaratingueta 2 Sao Caetano 2 +0.1
Oeste 4 Ituano 2 +0.1
Points
Chance Will Make Playoffs