How are these numbers calculated?

Big Games

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

Week of 5/10100.0*Average seed
Zopene 20 Doza 27 (ot)+0.2
Jiquiá FAC 39 Serafiano 10 -0.1
Olímpia 40 Duas 37 -0.1
FAC Metropolitano 23 Esquina de Baixo 20 (ot)+0.1
Siliar 44 Floresta Negra 20 -0.1
Bolanha 24 Olimorque 17 +0.0
Paternos 25 Poti 15 -0.0
Week of 5/17100.0*Average seed
União Militar 28 Jiquiá FAC 39 -0.1
Liga Operária 43 Siliar 37 +0.1
Week of 5/24100.0*Average seed
Siliar 26 Jiquiá FAC 35 -0.4
Zopene 37 Serafiano 15 +0.1
Points
Chance Will Win Championship