How are these numbers calculated?

Big Games

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

Week of 3/11100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Botafogo 2 Madureira 1 +0.5
-17.2
+1.0
Boavista 0 Fluminense 3 -0.4
-1.0
+0.2
Week of 3/19100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Madureira 0 Flamengo 2 -3.0
+0.1
Bangu 2 Americano 0 No
+0.1
Botafogo 4 Portuguesa 1 +0.7
Resende 0 Vasco da Gama 2 +0.2
Cabofriense 1 Volta Redonda 1 +0.0
Week of 3/23100.0*Chance in playoffs100.0*Seletiva100.0*Average seed
Americano 2 Botafogo 2 -0.4
Volta Redonda 2 Boavista 4 -0.4
Portuguesa 2 Resende 1 +0.2
Madureira 0 Cabofriense 0 +0.1
Points
Chance Will Make Playoffs