You estimate that the per year cost to attend the local university including room and board is $15,000 per year (for 4 years). You assume tuition costs will rise by 6% per year. You not only will have a cost to attend the university, but you also give up the potential salary that you might have earned if you would have not attended college. Imagine that the average salary with only a high school diploma is $30,000 and a cost of living raise per year is 3%. What is your 20 year ROI from attending the university if you earn an estimated $2.5 million over that time with a degree and only $800,000 without one? 7.09% 11.55% 8.76% 6.34%