How are these numbers calculated?

Big Games

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

Week of 3/22100.0*Chance in playoffs100.0*Average seed
Flamengo 3 Bangu 0 In
+0.1
Flamengo 2 Vasco da Gama 2 -0.1
Botafogo 2 Fluminense 3 -0.1
Fluminense 3 Macae 0 -0.0
If winner is:HomeDrawAway
Week of 3/29100.0*Chance in playoffs100.0*Average seed
Fluminense vs Flamengo-0.5+0.1+0.4
Madureira vs Fluminense+0.2+0.2-0.1
Volta Redonda vs Flamengo-0.2-0.2+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112Count
29-31In10030,962,582*
281-0-1In376317,562,460
270-2-0In34663,549,876
260-1-1In6947,122,964
250-0-2In1002,519,126
Total:In633761,717,008

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs