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
Belarus 1 Netherlands 3 -0.2
Cyprus 1 Greece 2 -0.2
Sweden 8 Luxembourg 0 -0.1
Bosnia 3 Belgium 4 +0.1
Switzerland 5 Hungary 2 +0.0
Week of 10/8100.0*Chance in playoffs100.0*Qualify chance incl. playoff100.0*Average seed
Wales 0 Ireland 1 +33.8
+49.4
+6.8
Serbia 1 Georgia 0 Out
-9.1
-1.1
Slovenia 2 Scotland 2 +0.2
+0.1
Norway 1 Northern Ireland 0 +0.1
+0.1
Greece 4 Gibraltar 0 -0.7
Slovakia 3 Malta 0 -0.3
Poland 4 Montenegro 2 +0.2
Albania 0 Italy 1 +0.1
Iceland 2 Kosovo 0 -0.1
Points
Chance Will Make Playoffs