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
New Zealand 44 Wales 12 -19.7
+20.1
-1.8
Canada 98 Hong Kong 0 -0.1
-0.5
+0.0
Canada 15 Wales 0 Out
+5.7
-0.3
United States 43 Spain 0 -1.5
+0.0
England 56 Italy 13 -1.5
+0.0
New Zealand 121 Hong Kong 0 -0.7
+0.0
Ireland 24 Japan 14 -0.4
+0.0
Ireland 19 Australia 17 -0.7
+0.0
France 72 Japan 14 -0.1
If winner is:HomeDrawAway
France vs Australia-0.6-0.5+4.5
+0.0+0.0-0.1
If winner is:HomeDrawAway
Week of 8/17100.0*Chance in playoffs100.0*9th-12th Playoffs100.0*Average seed
Wales vs Hong Kong-37.8+35.8Yes
+1.3+0.4-1.3
Italy vs Spain+2.4-13.2-2.1
+0.0-0.2+0.0
Australia vs Japan+1.9-10.6-4.8
+0.0+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed9th-12th
TPW-D-Lplayoffs123456789101112PlayoffsCount
41-0-0Out136225025.2%20,955,572
20-1-0Out196398.8509,066
00-0-1Out443224Yes20,956,394
Total:Out6311322161263.0%42,421,032
Games Above .500
Chance Will Make Playoffs