How are these numbers calculated?

Big Games

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

Week of 8/9100.0*Chance in playoffs100.0*9th-12th Playoffs100.0*Average seed
United States 24 Italy 12 +17.8
-19.8
+1.7
United States 43 Spain 0 +5.0
No
+0.3
Canada 98 Hong Kong 0 -4.7
-0.1
-0.1
England 56 Italy 13 -1.5
-0.0
New Zealand 121 Hong Kong 0 -1.3
-0.1
-0.0
Canada 15 Wales 0 -1.3
-0.1
-0.0
Ireland 24 Japan 14 -0.4
-0.0
England 56 Spain 5 -0.1
-0.1
If winner is:HomeDrawAway
Week of 8/17100.0*Chance in playoffs100.0*9th-12th Playoffs100.0*Average seed
Canada vs New Zealand-21.1-27.5+21.8
+0.0-0.1+0.0
England vs United States-22.5InIn
-1.5-1.0+1.5
Ireland vs France+0.1-7.6+0.1
+0.0-0.1+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed9th-12th
TPW-D-Lplayoffs123456789101112PlayoffsCount
121-0-0In5743No20,953,792
100-1-0In100No509,340
80-0-155.6%56440No20,957,900
Total:78.0%282129220No42,421,032
Games Above .500
Chance Will Make Playoffs