Matthew Liotine's Dream Store sells water beds and assorted supplies. His bestselling bed has an annual demand of 400 units. Ordering cost is $47; holding cost is $5 per unit per year. a) To minimize the total cost, how many units should be ordered each time an order is placed? EOQ = D units (round your response to the nearest whole number). b) lfthe holding cost per unit was $6.00 instead of $5, what would the optimal order quantity be? New EOQ = D units (round your response to the nearest whole number)