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*Campeonato Nacional100.0*Average seed
Abedi Pelé 18 AE Popular 13 No
+0.2
Paternos 25 Poti 15 -0.1
União Militar 20 Liga Operária 18 -0.1
Jiquiá FAC 39 Serafiano 10 -0.1
+0.0
FAC Metropolitano 23 Esquina de Baixo 20 (ot)-0.1
Week of 5/17100.0*Campeonato Nacional100.0*Average seed
Floresta Negra 36 Abedi Pelé 15 -0.2
Week of 5/24100.0*Campeonato Nacional100.0*Average seed
Liga Operária 23 Abedi Pelé 18 -0.4
Esquina de Baixo 17 Olimorque 19 +0.3
Points
Chance Will Win Championship