Marie, an employee at McCormick, has determined that she will need $5000 per month in retirement over a 30-year period. She has forecasted that her money will earn 7.2% compounded monthly. Marie will spend 25-years working toward this goal investing monthly at an annual rate of 7.2%. How much should Marie's monthly payments be during her working years in order to satisfy her retirement needs? how much must Marie have at retirement and the monthly payments to reach that goal.

What maximum amount could Marie withdraw each month so that her balance never decreases (nearest dollar)?