Roberts Enterprises has budgeted sales in units for the next ve months as follows: June 4,596 units Julyr ?,186 units August 5,389 units September 6,788 units October 3,?86 units ' Past experience has shown that the ending inventory for each month must be equal to 10% of the next month's sales in units. The inventory on May 31 contained 450 units. The company needs to prepare a production budget for the second quarter ofthe year. The desired ending inventory for August is