How are these numbers calculated?

Big Games

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

Week of 3/8100.0*Serie B100.0*Average seed
Resende 3 Macae 2 -19.1
+1.0
Duque de Caxias 2 Fluminense 2 +0.8
-0.0
Vasco da Gama 1 Bonsucesso 1 +0.6
-0.0
Bangu 1 Madureira 1 +0.2
+0.0
Nova Iguacu 3 Audax Rio 3 -0.2
+0.0
Friburguense 1 Cabofriense 1 +0.1
-0.1
Week of 3/15100.0*Serie B100.0*Average seed
Audax Rio 2 Cabofriense 0 +15.5
-0.2
Friburguense 1 Resende 0 +13.6
-1.2
Macae 4 Duque de Caxias 1 -9.4
+0.0
Madureira 1 Bonsucesso 2 +1.0
-0.1
Volta Redonda 3 Nova Iguacu 1 -0.1
Boavista 2 Botafogo 1 +0.0
Week of 3/22100.0*Serie B100.0*Average seed
Madureira 0 Resende 1 No
+1.0
Audax Rio 0 Macae 1 -20.6
+0.2
Vasco da Gama 4 Duque de Caxias 0 -1.5
+0.0
Friburguense 2 Bonsucesso 1 +0.2
Points
Chance Will Win Championship