How are these numbers calculated?

Big Games

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

Week of 3/31100.0*Chance in playoffs100.0*Average seed
Macae 1 Vasco da Gama 4 +6.2
+0.2
Fluminense 1 Botafogo 1 -6.0
-0.2
Flamengo 2 Bangu 1 -5.1
-0.2
Resende 2 Americano 1 -3.3
-0.1
Boavista 1 Olaria 2 -0.2
Friburguense 1 Madureira 1 +0.2
Nova Iguacu 0 Volta Redonda 0 +0.2
Duque de Caxias 2 Bonsucesso 1 +0.1
Week of 4/7100.0*Chance in playoffs100.0*Average seed
Botafogo 3 Friburguense 1 +22.2
+0.4
Bangu 1 Macae 0 +9.2
+0.2
Volta Redonda 1 Resende 1 +8.2
+0.1
Vasco da Gama 1 Flamengo 2 -4.2
-0.2
Olaria 0 Duque de Caxias 0 +0.2
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Boavista 1 Botafogo 1 -0.2
Flamengo 3 Americano 1 -0.2
Points
Chance Will Make Playoffs