How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/6100.0*Chance in playoffs100.0*Average seed
Penapolense 3 Guarani 0 +12.6
+0.4
Linense 3 Oeste 1 -2.0
-0.0
Botafogo-SP 1 Sao Paulo 3 +0.2
+0.1
Mogi Mirim 2 Paulista 0 +0.1
Ponte Preta 1 Palmeiras 2 -0.1
-0.2
Corinthians 2 Sao Bernardo 0 -0.1
Week of 4/13100.0*Chance in playoffs100.0*Average seed
Linense 2 Corinthians 1 -17.1
-0.2
Penapolense 1 Sao Caetano 1 -2.4
-0.3
Botafogo-SP 1 Bragantino 0 +2.1
-0.1
U. Barbarense 0 Santos 4 -0.0
Palmeiras 4 Guarani 1 -0.0
Week of 4/21100.0*Chance in playoffs100.0*Average seed
Mirassol 3 Linense 0 In
+0.3
Santos 2 Penapolense 1 -12.4
-0.2
XV Piracicaba 4 Botafogo-SP 1 +0.2
Points
Chance Will Make Playoffs