The MRP gross requirements for Item A are shown here for the next 10 weeks. Lead time for A is three weeks and setup cost is $10. There is a carrying cost of $0.010 per unit per week. Beginning inventory is 92 units. 1 2 3 4 WEEK 5 6 7 8 9 10 Gross requirements 35 40 17 25 25 75 85 20 60 200 87 Use the least total cost and the least unit cost lot-sizing methods to determine the quantity to order with the first order released with each method and which periods' requirements will be covered by that order. Periods Covered Quantity Ordered 13.05 4 to 7 Least total cost 25.45 4 to 9 Least unit cost