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
Bonsucesso 4 Boavista 0 +15.7
-1.2
Boavista 1 Vasco da Gama 2 +4.5
-0.2
Nova Iguacu 1 Friburguense 0 +2.6
-0.1
Barra Mansa 1 Botafogo 1 +1.4
-0.0
Madureira 1 Bonsucesso 1 +1.3
-0.0
Resende 2 Friburguense 0 +0.8
-0.0
Fluminense 3 Cabofriense 0 -0.5
+0.0
Resende 2 Macae 2 +0.5
-0.0
Volta Redonda 1 Tigres do Brasil 1 +0.4
-0.0
Fluminense 1 Tigres do Brasil 1 +0.2
-0.0
Cabofriense 0 Botafogo 1 -0.1
+0.0
Week of 3/28100.0*Serie B100.0*Average seed
Resende 4 Boavista 2 +15.7
-0.9
Bangu 1 Tigres do Brasil 0 -2.0
+0.1
Fluminense 4 Barra Mansa 2 -1.8
+0.1
Friburguense 1 Volta Redonda 1 +1.3
-0.0
Bonsucesso 0 Flamengo 2 -1.1
+0.0
Cabofriense 0 Nova Iguacu 0 -1.0
+0.1
Week of 4/5100.0*Serie B100.0*Average seed
Boavista 1 Friburguense 1 +18.3
-0.2
Tigres do Brasil 1 Barra Mansa 1 +3.6
-0.0
Nova Iguacu 0 Flamengo 0 -0.4
-0.2
Cabofriense 2 Bonsucesso 1 +0.3
-0.2
Friburguense 5 Vasco da Gama 4 +0.1
-0.1
Points
Chance Will Win Championship