The MRP gross requirements for Item X are shown here for the next 10 weeks. Lead time

for A is two weeks, and setup cost is $9. There is a carrying cost of $0.02 per unit per

week. Beginning inventory is 70 units.

Week

1 2 3 4 5 6 7 8 910

Gross requirements 20 10 15 45 10 30 100 20 40 150

Use the least total cost or the least unit cost lot-sizing method to determine when and for

what quantity the i rst order should be released.