The Devon Motor Company produces automobiles. On April 1st the company had no beginning inventories and it purchased 8,000 batteries at a cost of $80 per battery. It withdrew 7,600 batteries from the storeroom during the month. Of these, 100 were used to replace batteries in cars being used by the company's traveling sales staff. The remaining 7,500 batteries withdrawn from the storeroom were placed in cars being produced by the company. Of the cars in production during April, 90% were completed and transferred from work in process to nished goods. Of the cars completed during the month, 30% were unsold at April 30th