How are these numbers calculated?

Big Games

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

Week of 3/22100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Vasco da Gama 1 +9.5
+0.4
Friburguense 1 Duque de Caxias 2 -6.8
-0.1
Fluminense 4 Mesquita 1 +4.0
+0.2
Madureira 2 Duque de Caxias 1 +3.5
+0.1
Americano 1 America 0 +2.4
+0.1
Flamengo 2 Cabofriense 0 -1.9
-0.1
Volta Redonda 3 Resende 3 +1.2
+0.0
Flamengo 4 Friburguense 1 -1.1
-0.1
Botafogo 7 Macae 0 +0.9
+0.0
Americano 3 Volta Redonda 2 +0.3
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Flamengo 0 Madureira 0 +0.1
Botafogo 3 Fluminense 1 -0.1
Week of 4/5100.0*Chance in playoffs100.0*Average seed
Fluminense 4 Madureira 0 +0.2
Vasco da Gama 2 Flamengo 2 -0.0
Points
Chance Will Make Playoffs