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
Cotegipe 10 Baraka 26 +25.3
-0.5
Indelével 21 Congresso 36 -3.4
+0.1
FGC 10 Rashid 41 -1.6
+0.0
Colírio 30 Itabira 29 -0.1
Week of 5/26100.0*LFFA Série B100.0*Average seed
Baraka 35 Indelével 14 -4.2
+0.1
Cotegipe 36 FGC 30 (ot)-2.7
+0.1
Week of 6/2100.0*LFFA Série B100.0*Average seed
Cotegipe 30 Belenenses 26 -63.3
+1.3
Indelével 30 FGC 17 -1.1
+0.0
Braz 28 Sociedade Franciscana 34 +0.2
Points
Chance Will Make Playoffs