below is a quantity discount schedule for an item with an annual demand of 10,000 units that a company orders regularly at an ordering cost of $4.the annual holding cost is $2 dollar of the purchase price per year. determine the optimal order quantity. Order quantity (units) Price /unit ($) 0 to 2,499 $1.20 2,500 to 3,99 1.00 4,000 or more .98