Estimated demand for gold-filled lockets at Sam's Bargain Jewellery and Housewares is 2,420 lockets a year. Manager has indicated that ordering cost is $45, and that the following price schedule applies: 1 to 599 lockets, $.90 each; 600 to 1,199 lockets, $.80 each; and 1,200 or more, $.75 each. If holding cost is $.18 per locket on an annual basis, what will be the optimal order quantity (EOQ) (rounded to the next whole number)? 1100 units 1000 units 1300 units 1400 units 1205 units