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? *Holding cost=$1 /unit/week; setup cost =$100; lead time =1 week; beginning inventory =35 units. Prepare a net requirements plan (enter your responses as whole numbers). The cost of this ordering system is $ (enter your response as a whole number)