How are these numbers calculated?

Big Games

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

Week of 2/20100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Madureira 2 Portuguesa 1 +0.3
-0.3
Boavista 1 Volta Redonda 1 -0.3
+0.3
-0.2
Resende 1 Friburguense 1 +0.3
-0.3
Fluminense 1 Flamengo 2 +0.2
-0.2
+0.1
Botafogo 2 Fluminense 0 +0.2
-0.2
+0.0
Tigres do Brasil 1 Resende 1 +0.2
-0.2
Macae 2 Bonsucesso 2 +0.2
-0.2
Madureira 1 Macae 0 +0.1
-0.1
Botafogo 2 Cabofriense 1 +0.1
-0.1
Cabofriense 0 Flamengo 1 +0.1
-0.1
Portuguesa 3 Bonsucesso 1 -0.1
+0.1
Bangu 1 Volta Redonda 1 +0.1
-0.1
+0.1
America 1 Boavista 1 -0.1
Tigres do Brasil 0 Vasco da Gama 2 -0.1
Vasco da Gama 2 Friburguense 2 +0.1
Week of 2/27100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Bonsucesso 1 Boavista 2 In
No
+0.2
Portuguesa 0 America 1 +0.5
-0.5
Bangu 1 Madureira 0 -0.2
+0.2
-0.1
Week of 3/5100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Flamengo 3 Bangu 1 +0.1
Bonsucesso 1 Vasco da Gama 3 -0.0
Points
Chance Will Make Playoffs