How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Average seed
Germany 2 Netherlands 2 -0.3
Portugal 1 Poland 1 +0.1
Italy 0 Portugal 0 -0.1
England 2 Croatia 1 +0.0
Points
Chance Will Make Playoffs