The Associated Press reports that per-pupil spending in public schools varies widely from state to state, but the federal government contributes comparatively little to K-12 education, according to a Census report released July 27. The report, based on 2007 figures, shows the country’s 15,638 school districts received $556.9 billion in government funding. Of that amount, only 8.3 percent came from the federal government. The remainder came from state and local sources, the reports said. But the infusion of an unprecedented $100 billion in federal education stimulus money will likely change that equation in the coming years, said Russ Whitehurst, director of the Brown Center on Education Policy and a senior fellow at the Brookings Institution. The report showed that Louisiana received the most in federal revenue in 2007, with that funding making up 17.6 percent of the state’s per-pupil revenue. New Jersey had the smallest percentage of federal revenue, with 4 percent…