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 -1.5
+2.5
-0.3
Fluminense 1 Nova Iguacu 3 -0.4
+0.3
-0.1
Volta Redonda 3 Madureira 2 +0.3
+1.4
-0.1
Vasco da Gama 0 Botafogo 0 +0.3
Resende 0 Flamengo 1 +0.1
-1.8
+0.1
Portuguesa 2 Macae 1 +1.5
-0.0
Week of 3/22100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Resende 0 Boavista 1 +9.1
-15.3
+1.5
Boavista 1 Volta Redonda 0 +2.2
-17.5
+1.0
Bangu 0 Botafogo 2 -1.5
-5.1
Botafogo 2 Fluminense 3 +1.1
-0.2
+0.1
Portuguesa 2 Madureira 0 +1.0
+2.8
-0.0
Volta Redonda 2 Nova Iguacu 1 +0.4
+0.8
-0.1
Flamengo 2 Vasco da Gama 2 -0.2
-0.0
Nova Iguacu 0 Portuguesa 0 +0.1
-0.5
+0.0
Flamengo 3 Bangu 0 +0.1
-3.2
+0.1
Macae 1 Resende 2 -0.1
+0.4
-0.1
Fluminense 3 Macae 0 -0.8
Week of 3/29100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Vasco da Gama 1 Boavista 0 Out
+1.3
-1.1
Portuguesa 1 Botafogo 4 -3.9
-0.0
Resende 0 Nova Iguacu 1 -2.5
-0.6
-0.1
Volta Redonda 1 Flamengo 1 +1.1
+0.1
Madureira 2 Fluminense 2 +0.6
+0.3
+0.0
Boavista 1 Portuguesa 1 No
+0.3
Botafogo 3 Resende 2 No
+0.1
Madureira 3 Bangu 1 No
-0.1
Bangu 2 Macae 0 +1.3
-0.1
Macae 2 Volta Redonda 2 +0.1
Points
Chance Will Make Playoffs