How are these numbers calculated?

Big Games

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

Week of 3/18100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Bangu 0 Boavista 0 -1.1
+1.1
-0.2
Fluminense 1 Nova Iguacu 3 -0.4
-0.1
Volta Redonda 3 Madureira 2 +0.2
+1.0
-0.1
Vasco da Gama 0 Botafogo 0 +0.2
Resende 0 Flamengo 1 -0.4
+0.0
Portuguesa 2 Macae 1 +2.8
-0.0
Week of 3/22100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Resende 0 Boavista 1 +8.2
-15.0
+1.6
Boavista 1 Volta Redonda 0 +1.5
-17.6
+1.1
Bangu 0 Botafogo 2 -0.9
-4.7
+0.0
Portuguesa 2 Madureira 0 +0.8
+3.2
-0.0
Flamengo 2 Vasco da Gama 2 -0.6
-0.0
Volta Redonda 2 Nova Iguacu 1 +0.5
+0.5
-0.2
Botafogo 2 Fluminense 3 +0.4
+0.0
Nova Iguacu 0 Portuguesa 0 +0.1
+1.1
-0.0
Vasco da Gama 1 Madureira 0 +0.1
Macae 1 Resende 2 +0.3
-0.1
Flamengo 3 Bangu 0 -1.1
+0.0
Fluminense 3 Macae 0 -0.2
Week of 3/29100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Vasco da Gama 1 Boavista 0 Out
+0.4
-0.8
Portuguesa 1 Botafogo 4 -2.5
+0.0
Resende 0 Nova Iguacu 1 -2.1
-0.3
-0.1
Volta Redonda 1 Flamengo 1 +0.1
-0.0
Madureira 2 Fluminense 2 +0.1
+0.3
-0.1
Boavista 1 Portuguesa 1 No
+0.2
Botafogo 3 Resende 2 No
+0.1
Madureira 3 Bangu 1 No
-0.2
Bangu 2 Macae 0 +0.6
Macae 2 Volta Redonda 2 +0.3
Points
Chance Will Make Playoffs