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
União Militar 20 Liga Operária 18 -27.7
+0.8
Abedi Pelé 18 AE Popular 13 -5.3
+0.1
Paternos 25 Poti 15 -3.7
+0.1
Jiquiá FAC 39 Serafiano 10 -0.4
+0.0
Week of 5/17100.0*Campeonato Nacional100.0*Average seed
Poti 30 Olímpia 28 +14.7
-0.4
Liga Operária 43 Siliar 37 +7.9
-0.2
AE Popular 10 Paternos 22 -4.6
+0.1
União Militar 28 Jiquiá FAC 39 +3.5
-0.3
Serafiano 30 FAC Metropolitano 27 (ot)+1.0
-0.0
Week of 5/24100.0*Campeonato Nacional100.0*Average seed
AE Popular 40 Olímpia 37 +37.4
-0.6
Liga Operária 23 Abedi Pelé 18 +37.2
-0.5
FAC Metropolitano 27 União Militar 13 +11.3
-0.5
Poti 42 Dima Cardinals 42 (ot)+0.6
+0.0
Zopene 37 Serafiano 15 +0.0
Points
Chance Will Win Championship