How are these numbers calculated?

Big Games

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

Week of 2/18100.0*Segunda Divisão100.0*Average seed
Jacuipense 1 Flu de Feira 0 +8.8
-0.1
Jacuipense 0 Vitória 1 -4.9
+0.1
Bahia de Feira 3 Vitória da Conquista 0 -1.4
+0.0
Flu de Feira 0 Bahia de Feira 2 +0.7
Week of 2/25100.0*Segunda Divisão100.0*Average seed
EC Bahia 2 Atlântico 1 +19.4
-0.4
Jacuipense 4 Jacobina 0 -1.3
Week of 3/4100.0*Segunda Divisão100.0*Average seed
Vitória 2 Jacobina 1 -13.8
+0.2
Bahia de Feira 2 Atlântico 2 +9.9
-0.1
Vitória da Conquista 1 Flu de Feira 2 -1.8
Jequié 0 Jacuipense 1 +0.3
If winner is:HomeDrawAway
Atlântico vs Juazeirense-39.0YesYes
+0.4-0.2-0.2
Jacobina vs Vitória da ConquistaYes-14.1-14.1
-0.2+0.1+0.1

What If

Chances based on how well the Atlântico finish out the regular season.   Explain

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedSegunda
TPW-OTLDplayoffs12345678910DivisãoCount
51-000Out623837.5%2,361,580,455
2-3Out100Yes3,933,900,185*
Total:Out237776.6%6,295,480,640

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs