The graphic below, from the University of Southern California, provides a nice comparison of US spending and academic performance as compared to other countries.
A quick social studies teacher note: this figure shows total annual spending and not percentage of GDP or spending in relation to population, etc. Although the US spends way more than Finland I would be interested to see what this looks like in comparison to GDP or spending per pupil.
The Sacred Profession 
I wonder what the average cost of testing each student through their school years is for each country.
I thought the exact same thing!