How are these numbers calculated?

Big Games

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

Week of 2/20100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Botafogo 2 Cabofriense 1 +0.4
-0.4
+0.2
Fluminense 1 Flamengo 2 -0.2
+0.2
-0.1
Madureira 2 Portuguesa 1 -0.1
+0.1
Boavista 1 Volta Redonda 1 +0.1
-0.1
Resende 1 Friburguense 1 +0.1
-0.1
+0.0
Botafogo 2 Fluminense 0 In
No
+0.1
Cabofriense 0 Flamengo 1 -0.1
Week of 2/27100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Flamengo 5 Resende 0 -0.1
Week of 3/5100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Boavista 0 Botafogo 1 +0.4
Flamengo 3 Bangu 1 -0.2
Points
Chance Will Make Playoffs