How are these numbers calculated?

Big Games

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

Week of 3/21100.0*Chance wins title100.0*Semi-Final100.0*Average seed
Volta Redonda 0 Madureira 3 No
-3.5
-0.3
Fluminense 1 Tigres do Brasil 1 +1.0
+0.1
Macae 1 Bangu 1 +0.3
+0.1
Madureira 1 Bonsucesso 1 *No
+0.1
Barra Mansa 1 Botafogo 1 *No
+0.1
Volta Redonda 1 Tigres do Brasil 1 -0.8
-0.3
Boavista 1 Vasco da Gama 2 -0.2
Fluminense 3 Cabofriense 0 -0.2
-0.1
Cabofriense 0 Botafogo 1 -0.1
Resende 2 Macae 2 +0.1
+0.1
Flamengo 2 Vasco da Gama 1 -0.1
Flamengo 2 Bangu 1 -0.1
+0.1
Week of 3/28100.0*Chance wins title100.0*Semi-Final100.0*Average seed
Madureira 1 Macae 0 No
+0.1
Friburguense 1 Volta Redonda 1 -0.2
Bangu 1 Tigres do Brasil 0 -0.1
Week of 4/4100.0*Chance wins title100.0*Semi-Final100.0*Average seed
Bangu 1 Resende 2 +0.5
Vasco da Gama 4 Volta Redonda 1 -0.3
Volta Redonda 4 Resende 3 +0.3
Bangu 3 Cabofriense 0 -0.2
Macae 3 Barra Mansa 1 -0.1
Botafogo 1 Macae 0 +0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship