How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday, 3/31100.0*Average seed
Macae 0 Vasco da Gama 1 -0.2
Thursday, 4/2100.0*Average seed
Fluminense 2 Boavista 2 -0.1
Sunday, 4/5100.0*Average seed
Flamengo 1 Fluminense 1 -0.1
Vasco da Gama 4 Bangu 0 -0.1
Points
Chance Will Make Playoffs