How are these numbers calculated?

Big Games

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

Week of 4/11100.0*Chance in playoffs100.0*Average seed
Fluminense 3 Nova Iguacu 1 -3.5
+0.1
Madureira 0 Boavista 0 +0.7
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Boavista 2 Vasco da Gama 2 Out
-0.3
Flamengo 1 Vasco da Gama 3 +6.0
+1.1
Fluminense 1 Botafogo 0 -4.5
+0.1
Portuguesa 2 Flamengo 2 +3.0
+0.0
Madureira 4 Macae 2 -1.0
-0.2
Nova Iguacu 4 Resende 2 +0.0
If winner is:HomeDrawAway
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Resende vs Vasco da Gama-1.5+0.4+1.2
Bangu vs Nova Iguacu+0.2+0.2-0.4
Fluminense vs Madureira+0.3+0.1-0.3
Botafogo vs Macae-0.3+0.2+0.2
Portuguesa vs Boavista+0.1+0.1-0.2

What If

Chances based on how well the Vasco da Gama finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112RelegationCount
171-0-0Out6238No451,798,487
150-1-0Out1845316No285,011,312
140-0-1Out2544265No451,783,537
Total:Out28251718102No1,188,593,336
Points
Chance Will Make Playoffs