How are these numbers calculated?

Big Games

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

Week of 4/11None
Week of 4/15100.0*Average seed
Flamengo 1 Vasco da Gama 3 +0.2
Fluminense 1 Botafogo 0 -0.1
If winner is:HomeDrawAway
Week of 4/25100.0*Average seed
Flamengo vs Volta Redonda-1.0+0.4+0.8
Fluminense vs Madureira-0.4+0.2+0.2
Portuguesa vs Boavista-0.2+0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs123456789101112RelegationCount
241-0-0In100No451,790,317
220-1-0In6238No285,046,630
210-0-1In384714No451,756,389
Total:In5324185No1,188,593,336
Points
Chance Will Make Playoffs