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
Macae 1 Bangu 1 -0.4
-6.7
-0.2
Resende 2 Macae 2 -0.1
-4.6
-0.3
Barra Mansa 1 Botafogo 1 +0.1
+1.1
Fluminense 1 Tigres do Brasil 1 +2.6
+0.1
Volta Redonda 0 Madureira 3 -2.0
+0.0
Flamengo 2 Bangu 1 -0.6
+0.0
Flamengo 2 Vasco da Gama 1 -1.7
Cabofriense 0 Botafogo 1 -1.3
-0.0
Madureira 1 Bonsucesso 1 +2.3
+0.0
Boavista 1 Vasco da Gama 2 -0.2
Fluminense 3 Cabofriense 0 -0.6
-0.1
Volta Redonda 1 Tigres do Brasil 1 +0.1
+0.1
Week of 3/28100.0*Chance wins title100.0*Semi-Final100.0*Average seed
Madureira 1 Macae 0 No
No
-0.2
Bonsucesso 0 Flamengo 2 No
Friburguense 1 Volta Redonda 1 +0.1
Bangu 1 Tigres do Brasil 0 -0.1
Fluminense 4 Barra Mansa 2 -0.0
Week of 4/5100.0*Chance wins title100.0*Semi-Final100.0*Average seed
Botafogo 1 Macae 0 -0.2
Vasco da Gama 4 Volta Redonda 1 +0.1
Madureira 1 Fluminense 2 -0.1
Flamengo 3 Fluminense 0 +0.1
Points
Chance Will Win Championship