Frodic Corporation has budgeted sales and production over the next quarter as follows: The company has 5,900 units of product on hand at July 1.10% of the next month's sales in units should be on hand at the end of each month. October sales are expected to be 81,000 units. Budgeted sales for September would be (in units): 73,500 units 72,300 units 74,250 units 64,500 units