Hi Trevor,
I have the societal cost of dropouts if that helps you:
"The report puts the collective cost to the nation over the working life of each high school dropout at $292,000."
http://www.nytimes.com/2009/10/09/education/09dropout.html?_r=1&
There are more figures on our page:
Trauma's Monetary Costs to Society
http://acesconnection.com/profiles/blogs/monetary-costs-to-society
ACEsConnection member Jim Sporleder has written some blog posts on education policy & ACEs. Here's one post of his that has some more figures:
State math test for high school seniors plays “high stakes” with kids’ lives, taxpayers
Hopefully someone else will be able to contribute.