Exercise 16.24 Carla Co. has the following quantity discount policy with its supplier. Quantity Price per Unit 1-499 units $15.00 500-999 units $14.75 1,000-1,999 units $14.15 2,000 units + $13.35 The economic order quantity is 670 units and the annual usage is 25.438 units. The ordering cost (9 is $15 per order and the carrying cost of inventory (H) is $1.70 per unit. Determine the most cost effective order quantity (Round answers to 2 decimal places, e.g. 125.74.) The most cost effective order quantity is Total Cost