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*Average seed
Volta Redonda 3 Madureira 2 +3.6
+1.1
Vasco da Gama 0 Botafogo 0 +1.1
+0.1
Fluminense 1 Nova Iguacu 3 -0.3
-0.1
Bangu 0 Boavista 0 +0.1
+0.1
Resende 0 Flamengo 1 +0.1
Portuguesa 2 Macae 1 -0.0
Week of 3/22100.0*Chance in playoffs100.0*Average seed
Boavista 1 Volta Redonda 0 -5.3
-1.0
Volta Redonda 2 Nova Iguacu 1 +3.9
+1.4
Vasco da Gama 1 Madureira 0 -0.7
-0.0
Botafogo 2 Fluminense 3 +0.5
+0.1
Nova Iguacu 0 Portuguesa 0 +0.3
Portuguesa 2 Madureira 0 +0.3
-0.0
Flamengo 3 Bangu 0 +0.1
+0.1
Macae 1 Resende 2 -0.1
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Volta Redonda 1 Flamengo 1 -5.2
-0.3
Resende 0 Nova Iguacu 1 -3.1
-0.2
Madureira 2 Fluminense 2 +0.1
+0.0
Macae 2 Volta Redonda 2 -0.4
Madureira 3 Bangu 1 -0.3
Boavista 1 Portuguesa 1 +0.2
Nova Iguacu 0 Vasco da Gama 2 +0.2
Vasco da Gama 1 Boavista 0 +0.1
Portuguesa 1 Botafogo 4 +0.0
Points
Chance Will Make Playoffs