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*Serie A2100.0*Average seed
Penapolense 3 Guarani 0 Out
-0.5
Linense 3 Oeste 1 +0.0
Mogi Mirim 2 Paulista 0 -0.3
+0.1
Paulista 2 Ituano 3 +5.0
+0.0
Corinthians 2 Sao Bernardo 0 +2.4
-0.5
A. Sorocaba 1 Oeste 0 +2.1
-0.1
U. Barbarense 1 Sao Paulo 2 -1.3
+0.0
A. Sorocaba 3 Mirassol 2 +1.0
+0.0
Week of 4/13100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Sao Bernardo 1 Mogi Mirim 2 +7.4
-0.6
Ponte Preta 2 Mirassol 0 -4.2
+0.1
U. Barbarense 0 Santos 4 -1.2
+0.0
Penapolense 1 Sao Caetano 1 -1.0
+0.0
Sao Paulo 0 XV Piracicaba 1 -0.2
Week of 4/21100.0*Chance in playoffs100.0*Serie A2100.0*Average seed
Mirassol 3 Linense 0 +20.7
-0.4
Oeste 0 Sao Bernardo 4 No
+1.9
Ituano 2 Palmeiras 1 +7.6
-0.4
Sao Caetano 0 Paulista 2 +1.9
-0.3
Corinthians 2 A. Sorocaba 0 +0.1
Points
Chance Will Make Playoffs