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
Vasco da Gama 0 Botafogo 0 -4.8
-0.2
Volta Redonda 3 Madureira 2 +4.5
+0.0
Fluminense 1 Nova Iguacu 3 -4.3
-0.2
Resende 0 Flamengo 1 +0.2
+0.0
Bangu 0 Boavista 0 +0.2
Week of 3/22100.0*Chance in playoffs100.0*Average seed
Vasco da Gama 1 Madureira 0 +13.3
+0.9
Volta Redonda 2 Nova Iguacu 1 +6.5
+0.1
Botafogo 2 Fluminense 3 +3.8
+0.1
Nova Iguacu 0 Portuguesa 0 +3.5
+0.1
Portuguesa 2 Madureira 0 +2.7
+0.1
Boavista 1 Volta Redonda 0 +0.8
+0.1
Macae 1 Resende 2 -0.2
Flamengo 3 Bangu 0 +0.0
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Nova Iguacu 0 Vasco da Gama 2 In
+0.8
Vasco da Gama 1 Boavista 0 +14.4
+0.6
Botafogo 3 Resende 2 -11.3
-0.2
Portuguesa 1 Botafogo 4 -8.8
-0.2
Resende 0 Nova Iguacu 1 -7.3
-0.2
Volta Redonda 1 Flamengo 1 +0.4
-0.0
Madureira 2 Fluminense 2 +0.1
-0.0
Points
Chance Will Make Playoffs