How are these numbers calculated?

Big Games

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

Week of 6/3100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Portugal 1 England 0 +27.5
+24.4
+1.6
England 1 Spain 1 +3.1
+4.6
+0.1
Portugal 2 Ghana 2 +2.4
-6.9
-0.1
Ghana 1 Spain 1 +1.7
+2.2
+0.1
Brazil 0 Korea 0 +2.2
+0.1
Germany 3 Ivory 1 -0.9
-0.0
Week of 6/10100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Spain 2 Portugal 1 -44.5
No
-1.4
England 0 Ghana 4 -11.0
-0.3
Ivory 4 Brazil 0 -14.0
-0.2
Germany 1 Korea 0 -0.1
Points
Chance Will Make Playoffs