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 -3.1
+0.0
Madureira 0 Boavista 0 +1.5
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Fluminense 1 Botafogo 0 Out
-1.0
Madureira 4 Macae 2 -0.8
-0.2
Flamengo 1 Vasco da Gama 3 -0.7
-0.2
Boavista 2 Vasco da Gama 2 +0.2
Nova Iguacu 4 Resende 2 -0.0
If winner is:HomeDrawAway
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Botafogo vs Macae+1.5-0.4-1.3
Portuguesa vs Boavista+0.3-0.0-0.3
Bangu vs Nova Iguacu+0.3+0.1-0.3
Fluminense vs Madureira+0.2-0.1-0.1
Resende vs Vasco da Gama-0.1-0.0+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112RelegationCount
151-0-0Out13393711No451,778,082
130-1-0Out1542359No285,019,093
120-0-1Out154738No451,796,161
Total:Out51518202617No1,188,593,336
Points
Chance Will Make Playoffs