How to solve using BA II Calculator? Assume that today you are tuning 25 years old, and you would like to start your retirement account. You plan to invest $25,000 per year with your first deposit being made today. You are investing in a retirement fund that will return 5.6%. You plan to retire at the age of 70 and expect to live 25 years after your retirement. Assuming this information, how much can you spend each year after you retire?