If Northern Optical plans to sell 200,000 units of finished product in July and anticipates a growth rate in sales of 5% per month, the desired monthly ending inventory in units of finished product is 80% of the next month's estimated sales, there are 150,000 finished units in inventory on June 30. The required production for August is 665,720 units. 218,400 units. 218,000 units. 664,000 units