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
Fluminense 1 Tigres do Brasil 1 -4.5
+0.2
Bonsucesso 4 Boavista 0 +4.4
+0.0
Resende 2 Friburguense 0 +3.2
-0.1
Volta Redonda 1 Tigres do Brasil 1 -3.1
+0.1
Nova Iguacu 1 Friburguense 0 +1.5
+0.0
Madureira 1 Bonsucesso 1 +1.3
-0.1
Barra Mansa 1 Botafogo 1 +1.0
-0.1
Boavista 1 Vasco da Gama 2 -0.7
+0.0
Fluminense 3 Cabofriense 0 -0.4
+0.1
Resende 2 Macae 2 +0.3
-0.0
Cabofriense 0 Botafogo 1 -0.1
+0.0
Week of 3/28100.0*Serie B100.0*Average seed
Bangu 1 Tigres do Brasil 0 +7.7
-0.6
Resende 4 Boavista 2 -2.2
-0.1
Friburguense 1 Volta Redonda 1 +1.0
-0.0
Bonsucesso 0 Flamengo 2 -0.7
+0.1
Fluminense 4 Barra Mansa 2 -0.6
+0.1
Cabofriense 0 Nova Iguacu 0 +0.1
Week of 4/5100.0*Serie B100.0*Average seed
Tigres do Brasil 1 Barra Mansa 1 No
+0.3
Boavista 1 Friburguense 1 -7.3
+0.1
Cabofriense 2 Bonsucesso 1 +4.7
-0.2
Nova Iguacu 0 Flamengo 0 -1.3
+0.0
Friburguense 5 Vasco da Gama 4 -0.2
Points
Chance Will Win Championship