Tuition revenue growth at both public and private colleges is the slowest in a decade, according to Moody’s Investors Service. Public universities anticipate a 1.9 percent increase in net tuition revenue, and private universities expect a slightly higher 2.7 percent increase. The decrease is credited to smaller freshman classes and greater attention paid to colleges’ high costs. A quarter of public and private universities are actually expecting declines in net tuition in the coming years. Schools in the Midwest and Northeast, where the population of graduating high-school students has been declining, were hardest hit.