How are these numbers calculated?

Big Games

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

Week of 3/22100.0*Chance in playoffs100.0*Average seed
Boavista 1 Volta Redonda 0 -17.3
-0.7
Vasco da Gama 1 Madureira 0 -4.3
-0.2
Flamengo 3 Bangu 0 +2.6
+0.1
Nova Iguacu 0 Portuguesa 0 +1.5
+0.0
Week of 3/25100.0*Chance in playoffs100.0*Average seed
Volta Redonda 2 Nova Iguacu 1 +19.0
+0.9
Volta Redonda 1 Flamengo 1 -7.8
-0.2
Portuguesa 2 Madureira 0 -4.2
-0.2
Resende 0 Nova Iguacu 1 +2.6
+0.2
Madureira 2 Fluminense 2 -1.4
-0.0
Week of 3/30100.0*Chance in playoffs100.0*Average seed
Macae 2 Volta Redonda 2 Out
-0.1
Nova Iguacu 0 Vasco da Gama 2 -14.5
-0.2
Portuguesa 1 Botafogo 4 +11.2
+0.3
Vasco da Gama 1 Boavista 0 -8.6
-0.3
Fluminense 1 Flamengo 1 -5.4
-0.1
Boavista 1 Portuguesa 1 +1.8
+0.0
Bangu 2 Macae 0 -0.2
-0.1
Botafogo 3 Resende 2 +0.1
Madureira 3 Bangu 1 +0.1
Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 3/22100.0*Lottery seed
Boavista 1 Volta Redonda 0 +1.5
Nova Iguacu 0 Portuguesa 0 -0.1
Vasco da Gama 1 Madureira 0 +0.0
Week of 3/25100.0*Lottery seed
Volta Redonda 2 Nova Iguacu 1 -1.9
Volta Redonda 1 Flamengo 1 +0.5
Resende 0 Nova Iguacu 1 +0.1
Portuguesa 2 Madureira 0 +0.1
Madureira 2 Fluminense 2 -0.0
Week of 3/30100.0*Lottery seed
Macae 2 Volta Redonda 2 +0.3
Madureira 3 Bangu 1 -0.1
Fluminense 1 Flamengo 1 +0.1
Boavista 1 Portuguesa 1 -0.1
Bangu 2 Macae 0 -0.1
Vasco da Gama 1 Boavista 0 +0.0
Portuguesa 1 Botafogo 4 -0.0