How much your account is 3% compounded continuous 10. Suppose you graduate at the age of 25 and invest $350 per month in a portfolio returning an average of 7% per year. How much does this turn into when you are 40 years old? 11. You choose not to be a hamster running round and round on a wheel going nowhere your whole life and save very aggressively after graduation. If you start saving $800 per month when you are 23 years old and plan to retire when you are 50 years old, how much will you have assuming a rate of return of 6%? Would you retire on this amount? 4 24 how much do you need to save per month Saturn is 6%