As part of his new 10-year contract with the St. Louis Cardinals, Albert will have $5 million of his salary at the end of each of the next 10 years deferred at 6% compounded annually. At his retirement at the end of this 10-year contract, Albert wants to make 40 equal beginning of the year withdrawals from his deferred salary account. How large will Albert's annual retirement withdrawal be assuming the deferred salary account continues to earn 6% compounded annually