A couple are planning for retirement. They plan to retire at age 70. At that time they wish to be able to withdraw $7500 per month from their retirement account for a period of 25 years, reducing the balance to zero. How much should they start saving now in an account that pays 7.54% compounded monthly to achieve their goal? Assume that they will be able to earn at least 7.54% interest compounded monthly from now until they are age 95.
How much interest is earned over the 65 year period?