28. Nico's Manufacturing uses 2,400 units of a product per year on a continuous basis. The product carrying costs are $60 per year and ordering costs are $250 per order. It takes 20 days to receive a shipment after an order is placed and the firm requires a safety stock of 8 days of usage in inventory. Calculate the economic order quantity and the total cost per year to order and carry this item. (Please calculate the arithmetic solution and show your work)