Creating a retirement fund Personal Finance Problem To supplement your retirement, you estimate that you need to accumulate $400,000 exactly 40 years from today. You plan to make equal, end-of-year deposits into an account paying 7% annual interest. a. How large must the annual deposits be to create the $400,000 fund by the end of 40 years? b. If you can afford to deposit only $1,620 per year into the account, how much will you have accumulated in 40 years?