Using the gross requirements schedule below*, prepare an alternative ordering system that orders every 3 weeks for 3 weeks ahead (a periodic order quantity). What is the cost of this ordering system? 4 6 7 8 9 10 Period 1 3 Gross requirements 45 30 50 0 10 40 30 0 30 65 * Holding cost = $1/unit/week; setup cost = $150; lead time = 1 week; beginning inventory = 45 units. Prepare a net requirements plan (enter your responses as whole numbers). 1 2 3 4 5 6 7 8 9 10 45 30 50 0 10 40 30 0 30 65 45 45 Period Gross requirements On-hand at beginning of period On-hand at end of period Net requirements Order receipt Order release The cost of this ordering system is $(enter your response as a whole number). Fill in the box. PLEASE SHOW CALCULATION