How are these numbers calculated?

Big Games

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

Week of 3/21100.0*Serie B100.0*Average seed
Nova Iguacu 1 Friburguense 0 +6.3
-1.0
Resende 2 Friburguense 0 +1.4
-0.8
Bonsucesso 4 Boavista 0 +0.8
+0.1
Boavista 1 Vasco da Gama 2 -0.3
+0.0
Madureira 1 Bonsucesso 1 +0.2
-0.0
Resende 2 Macae 2 +0.2
-0.0
Fluminense 3 Cabofriense 0 -0.2
+0.1
Barra Mansa 1 Botafogo 1 +0.1
-0.0
Volta Redonda 1 Tigres do Brasil 1 +0.1
Cabofriense 0 Botafogo 1 -0.1
+0.1
Fluminense 1 Tigres do Brasil 1 -0.0
Week of 3/28100.0*Serie B100.0*Average seed
Friburguense 1 Volta Redonda 1 -4.6
+0.0
Resende 4 Boavista 2 -1.6
-0.1
Bangu 1 Tigres do Brasil 0 -1.3
+0.1
Fluminense 4 Barra Mansa 2 -1.1
+0.1
Bonsucesso 0 Flamengo 2 -0.7
+0.1
Cabofriense 0 Nova Iguacu 0 -0.6
+0.1
Week of 4/4100.0*Serie B100.0*Average seed
Bangu 3 Cabofriense 0 -0.7
+0.1
Macae 3 Barra Mansa 1 -0.6
+0.1
Friburguense 5 Vasco da Gama 4 No
+1.6
Boavista 2 Tigres do Brasil 2 +0.5
+0.1
Nova Iguacu 0 Bonsucesso 1 -0.1
-0.2
Bangu 1 Resende 2 -0.4
Cabofriense 2 Bonsucesso 1 +0.2
Volta Redonda 4 Resende 3 +0.1
Boavista 1 Friburguense 1 -0.1
Points
Chance Will Win Championship