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 +7.4
-0.1
Vasco da Gama 1 Bonsucesso 1 +1.6
-0.0
Duque de Caxias 2 Fluminense 2 -1.0
+0.1
Bangu 1 Madureira 1 +0.4
Friburguense 1 Cabofriense 1 +0.2
Nova Iguacu 3 Audax Rio 3 -0.1
Week of 3/15100.0*Serie B100.0*Average seed
Macae 4 Duque de Caxias 1 +14.3
-0.4
Friburguense 1 Resende 0 -6.3
+0.1
Audax Rio 2 Cabofriense 0 +4.0
-0.4
Madureira 1 Bonsucesso 2 +2.2
-0.0
Week of 3/22100.0*Serie B100.0*Average seed
Audax Rio 0 Macae 1 -1.8
Madureira 0 Resende 1 Yes
-0.0
Vasco da Gama 4 Duque de Caxias 0 Yes
-0.1
Points
Chance Will Win Championship