Price indexes can be used to compare prices across different periods. Suppose that a year of tuition for college at public institutions averaged a cost of â$ in 1989 and that the CPI index was in 1989. If the CPI index was inâ 2009, then the cost of tuition inâ 2009, as the result ofâ inflation, would equal â$ ___________. â(Enter your response rounded to the nearest wholeâ number.) Suppose that the actual average cost of tuition in 2009 was â$. Relative to the expected cost computedâ above, the cost of tuition increased by __________ the same as less than the amount of inflation.