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*Chance in playoffs100.0*Quartas de final100.0*Average seed
Aleixo 42 Braz 35 +0.3
+0.2
Colírio 30 Itabira 29 In
+7.6
+1.1
Cabedelo 30 AAFDD 20 +0.0
Belenenses 45 Limaco 18 -1.0
-0.0
FGE 34 Sociedade Franciscana 13 -0.8
-0.0
FGC 10 Rashid 41 -0.7
-0.0
Sinani 19 Dima FAC 14 +0.6
+0.0
Pirineu 40 Ratoli 29 +0.1
Week of 5/26100.0*Chance in playoffs100.0*Quartas de final100.0*Average seed
Congresso 24 Colírio 13 No
-0.6
Braz 21 FGE 32 -2.9
+0.0
Itabira 45 Cabedelo 42 -2.9
-0.2
Rashid 30 Belenenses 28 -0.4
AAFDD 34 Sinani 31 +0.1
Dima FAC 28 Ratoli 31 (ot)+0.3
Week of 6/2100.0*Chance in playoffs100.0*Quartas de final100.0*Average seed
Baraka 38 Colírio 25 -0.7
Dima FAC 23 Pirineu 13 -0.1
Itabira 33 Sinani 16 +0.1
Points
Chance Will Make Playoffs