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 -2.8
+0.0
Madureira 0 Boavista 0 +0.6
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Fluminense 1 Botafogo 0 -1.9
+0.2
Madureira 4 Macae 2 -1.5
-0.2
Portuguesa 2 Flamengo 2 Out
Nova Iguacu 4 Resende 2 -1.1
Boavista 2 Vasco da Gama 2 +0.3
Flamengo 1 Vasco da Gama 3 -0.2
If winner is:HomeDrawAway
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Resende vs Vasco da Gama+1.6-0.5-1.3
Portuguesa vs Boavista+0.3-0.1-0.3
Botafogo vs Macae-0.3+0.1+0.3
Bangu vs Nova Iguacu+0.2+0.1-0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112RelegationCount
141-0-0Out384714No451,783,537
120-1-0Out2265021No285,011,312
110-0-1Out3862No451,798,487
Total:Out1518122629No1,188,593,336
Points
Chance Will Make Playoffs