How are these numbers calculated?

Big Games

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

Week of 10/7100.0*Chance in playoffs100.0*Qualify chance incl. playoff100.0*Average seed
Sweden 8 Luxembourg 0 -0.1
Bulgaria 0 France 1 -0.1
Bosnia 3 Belgium 4 +0.1
Andorra 0 Portugal 2 -0.0
Week of 10/8100.0*Chance in playoffs100.0*Qualify chance incl. playoff100.0*Average seed
Denmark 1 Romania 1 Out
+0.2
+0.3
Poland 4 Montenegro 2 Out
-0.1
-0.1
Slovenia 2 Scotland 2 +0.2
+0.1
Netherlands 2 Sweden 0 +0.4
Albania 0 Italy 1 -0.3
Iceland 2 Kosovo 0 -0.3
Norway 1 Northern Ireland 0 +0.3
France 2 Belarus 1 -0.2
Serbia 1 Georgia 0 -0.1
Ukraine 0 Croatia 2 -0.1
Wales 0 Ireland 1 +0.1
Points
Chance Will Make Playoffs