How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 6/3100.0*Chance in playoffs100.0*Average seed
Brazil vs Haiti+18.2-37.5
+0.5-1.0
Ecuador vs Peru-18.1+4.9
-0.3+0.1
If winner is:HomeAway
Week of 6/10100.0*Chance in playoffs100.0*Average seed
Brazil vs Peru+34.8-9.4
+1.1-0.3
Ecuador vs Haiti-7.5+15.4
-0.1+0.2

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234Count
2.3332-0-0In9374,603,360
1.3331-1-054.4%544619,248,180
0.3330-2-0Out13878,278,268
Total:46.9%1334312232,129,808
Points
Chance Will Make Playoffs