How are these numbers calculated?

Big Games

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

Week of 5/19100.0*LFFA Série B100.0*Average seed
Indelével 21 Congresso 36 +7.7
-0.3
FGC 10 Rashid 41 -1.1
+0.1
Cotegipe 10 Baraka 26 +0.4
Aleixo 42 Braz 35 -0.1
Week of 5/26100.0*LFFA Série B100.0*Average seed
Baraka 35 Indelével 14 +21.7
-0.7
Cotegipe 36 FGC 30 (ot)-7.1
+0.2
Week of 6/2100.0*LFFA Série B100.0*Average seed
Cotegipe 30 Belenenses 26 +40.6
-0.8
Indelével 30 FGC 17 -25.8
+0.5
Braz 28 Sociedade Franciscana 34 -0.2
Points
Chance Will Make Playoffs