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 $0.01 per unit per week.

Beginning inventory is 90 units.

WEEK 1 234 5 6 7 8 9 10 Gross requirements 30 50 10 20 70 80 20 60 200 50 Use the least total cost or the least unit cost lot-sizing method to determine when and for what quantity the first order should be released.