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*Seletiva100.0*Average seed
Bangu 1 Portuguesa 1 +0.1
Week of 3/7100.0*Seletiva100.0*Average seed
Portuguesa 2 Nova Iguacu 1 +10.3
-0.4
Fluminense 2 Nova Iguacu 1 +8.7
-0.2
Volta Redonda 1 Botafogo 1 +7.2
-0.1
Madureira 0 Cabofriense 2 -3.7
-0.0
Macae 1 Volta Redonda 1 -2.2
+0.1
Week of 3/17100.0*Seletiva100.0*Average seed
Nova Iguacu 0 Macae 2 Yes
-0.8
Bangu 0 Madureira 3 +9.6
-0.5
Points
Chance Will Make Playoffs