How are these numbers calculated?

Big Games

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

Week of 6/3100.0*Chance in playoffs100.0*Average seed
Jamaica 0 Venezuela 1 -22.9
-0.6
If winner is:HomeAway
Mexico vs Jamaica-8.8+31.2
-0.2+0.7
Uruguay vs Venezuela+0.1-0.0
-0.1+0.0
If winner is:HomeAway
Week of 6/10100.0*Chance in playoffs100.0*Average seed
Uruguay vs Jamaica-5.7+12.7
-0.3+0.7
Mexico vs Venezuela-2.5+1.2

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234Count
22-0-091.6%197382,189,945
11-1-08.79722012,630,540
00-2-0Out10017,309,323
Total:9.7%18296232,129,808
Points
Chance Will Make Playoffs