The Law Office of Barnes & Smith have a policy to order ink cartridges 60 units at a time. The firm estimates that carrying cost is 40% of the $10 unit cost and that annual demand is about 240 units per year. a) For what value of ordering cost would its action be optimal? Define optimal order quantity Calculate the holding and set up costs b) If the true ordering cost turns out to be much greater than your answer to part (a), what is the impact on the firm's ordering policy? Calculate EOQ