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 -18.2
+21.5
-1.8
England 56 Italy 13 Out
+21.9
-1.4
New Zealand 121 Hong Kong 0 -2.1
-4.2
+0.1
Canada 15 Wales 0 -1.8
-4.2
+0.1
United States 43 Spain 0 -1.5
-3.9
+0.1
Canada 98 Hong Kong 0 -1.0
-1.4
Ireland 24 Japan 14 -0.9
+0.4
+0.0
England 56 Spain 5 -0.1
-0.1
New Zealand 44 Wales 12 -0.1
France 72 Japan 14 -0.1
Ireland 19 Australia 17 -0.2
If winner is:HomeDrawAway
France vs Australia-4.7-4.3+4.8
+0.1+0.1-0.1
If winner is:HomeDrawAway
Week of 8/17100.0*Chance in playoffs100.0*9th-12th Playoffs100.0*Average seed
Italy vs Spain-34.6YesYes
+1.4+0.4-1.4
Wales vs Hong Kong+9.6-10.4-9.3
+0.0-0.2+0.0
Australia vs Japan-1.7-8.6+1.9
+0.1+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed9th-12th
TPW-D-Lplayoffs123456789101112PlayoffsCount
41-0-0Out125728431.7%6,983,782
20-1-0Out7525Yes169,951
00-0-1Out225424Yes6,986,611
Total:Out6281513271266.2%14,140,344
Games Above .500
Chance Will Make Playoffs