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 +6.7
-0.1
Nova Iguacu 3 Audax Rio 3 +1.8
+0.0
Vasco da Gama 1 Bonsucesso 1 +1.2
-0.0
Friburguense 1 Cabofriense 1 +0.1
Duque de Caxias 2 Fluminense 2 -0.1
Week of 3/15100.0*Serie B100.0*Average seed
Audax Rio 2 Cabofriense 0 -28.5
+0.9
Friburguense 1 Resende 0 -4.3
+0.1
Madureira 1 Bonsucesso 2 +2.1
Macae 4 Duque de Caxias 1 -1.2
+0.1
Week of 3/22100.0*Serie B100.0*Average seed
Audax Rio 0 Macae 1 +32.7
-0.5
Madureira 0 Resende 1 +11.5
-0.2
Vasco da Gama 4 Duque de Caxias 0 -0.3
+0.0
Friburguense 2 Bonsucesso 1 +0.1
Points
Chance Will Win Championship