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
Nova Iguacu 0 Portuguesa 0 -11.1
-0.3
Flamengo 3 Bangu 0 -3.6
-0.1
Boavista 1 Volta Redonda 0 -1.3
-0.1
Vasco da Gama 1 Madureira 0 +0.7
+0.0
Week of 3/25100.0*Chance in playoffs100.0*Average seed
Volta Redonda 2 Nova Iguacu 1 -22.9
-0.5
Resende 0 Nova Iguacu 1 +20.0
+0.5
Volta Redonda 1 Flamengo 1 +0.6
+0.0
Portuguesa 2 Madureira 0 +0.5
Week of 3/30100.0*Chance in playoffs100.0*Average seed
Nova Iguacu 0 Vasco da Gama 2 -36.4
-0.7
Portuguesa 1 Botafogo 4 -13.2
-0.2
Botafogo 3 Resende 2 -9.6
-0.2
Fluminense 1 Flamengo 1 +8.0
+0.2
Vasco da Gama 1 Boavista 0 +6.2
+0.2
Boavista 1 Portuguesa 1 +0.2
+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
Nova Iguacu 0 Portuguesa 0 +0.4
Flamengo 3 Bangu 0 +0.1
Vasco da Gama 1 Madureira 0 +0.0
Boavista 1 Volta Redonda 0 -0.0
Week of 3/25100.0*Lottery seed
Volta Redonda 2 Nova Iguacu 1 +1.2
Resende 0 Nova Iguacu 1 -1.2
Madureira 2 Fluminense 2 -0.1
Portuguesa 2 Madureira 0 +0.1
Volta Redonda 1 Flamengo 1 -0.0
Week of 3/30100.0*Lottery seed
Nova Iguacu 0 Vasco da Gama 2 +2.1
Botafogo 3 Resende 2 +0.2
Boavista 1 Portuguesa 1 -0.1
Macae 2 Volta Redonda 2 -0.1
Portuguesa 1 Botafogo 4 +0.1
Fluminense 1 Flamengo 1 -0.1
Vasco da Gama 1 Boavista 0 +0.0