How are these numbers calculated?

Big Games

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

Week of 3/3100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Bangu 1 Portuguesa 1 -6.7
-0.0
-0.2
Flamengo 1 Botafogo 0 +1.4
+0.0
Week of 3/7100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Portuguesa 1 Cabofriense 2 -24.3
-0.9
Portuguesa 2 Nova Iguacu 1 +21.2
No
+0.8
Boavista 0 Flamengo 3 +5.9
+0.1
Volta Redonda 1 Botafogo 1 +4.1
+0.1
Vasco da Gama 0 Fluminense 0 +1.9
+0.1
Fluminense 2 Nova Iguacu 1 -1.7
-0.2
Madureira 0 Cabofriense 2 No
-0.1
Macae 1 Volta Redonda 1 No
Week of 3/17100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Flamengo 4 Portuguesa 0 Out
-1.1
Volta Redonda 2 Boavista 3 -0.4
Cabofriense 1 Fluminense 1 +0.1
Bangu 0 Madureira 3 +0.1
Points
Chance Will Make Playoffs