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 -10.3
-0.2
Linense 3 Oeste 1 -2.7
-0.1
Ponte Preta 1 Palmeiras 2 -1.8
Botafogo-SP 1 Sao Paulo 3 +1.5
+0.0
Corinthians 2 Sao Bernardo 0 -0.8
A. Sorocaba 1 Oeste 0 +0.0
Week of 4/13100.0*Chance in playoffs100.0*Average seed
Botafogo-SP 1 Bragantino 0 Out
-0.5
Linense 2 Corinthians 1 -1.0
-0.2
Penapolense 1 Sao Caetano 1 -0.6
Sao Paulo 0 XV Piracicaba 1 -0.1
Week of 4/21100.0*Chance in playoffs100.0*Average seed
XV Piracicaba 4 Botafogo-SP 1 -0.4
Bragantino 0 Ponte Preta 0 -0.3
Mirassol 3 Linense 0 +0.2
Points
Chance Will Make Playoffs