| EOQ Assignment |
| You are the company's Supply Chain Manager -- solve the below questions to ensure an optimal ordering policy. |
| Annual requirements (R) = |
18,000 |
units |
| Place EOQ graph here…. |
| Order cost (S) = |
$68.00 |
per order |
| Holding rate (k) = |
32.0% |
annually |
| Unit cost (C) = |
$52.87 |
per unit |
| Lead time (LT) = |
4 |
days |
| Number of days per year = |
365 |
days |
| Compute the following: |
| Note: You must include formulas for full credit -- do NOT simply type in answers. Add additional cells if necessary, but label each clearly! |
| a) EOQ = |
| units |
| EOQ (rounded to nearest whole item) |
| units |
| b) total purchase cost = |
| c) annual holding cost = |
| d) annual order cost = |
| e) total annual logistics cost = |
| (without purchase cost) |
| f) reorder point |
| units (note: no variability in demand or lead-time in this situation) |
| g) number of orders placed per year = |
| orders |
| h) time between orders = |
| days |
| i) plot cost curves -- holding cost, order cost and total cost. Use the layout below the questions, if needed. |
| j) If you are required to order by the whole case, at 50-per case, what Q would you recommend? |
| units |
| k) What is the new Total Annual Logistics Cost of the Whole-Case Q? |
| (suggestion -- you can compute here, or just change your Q above where your EOQ is and see the resulting costs -- don't forget to undo this change to put EOQ back!) |
| l) What is the difference in Total Annual Logistics Cost of EOQ and that of the Whole-Case Q? |
| m) Given your answer to l above, what does this say about the EOQ Formula? |
| n) Your CEO just announced that inventory levels must be cut by 10% in order to reduce costs (based on your original EOQ in a.). What would your new Q need to be? |
| units |
(note: average inventory = Q/2 ) |
| o) Based on your new Q from above, you will actually raising costs unless you can change S too. What would your new S need to be in order to stay with an optimal ordering policy? |
| p) How much must S be reduced from the current cost-per order to reach your new goal? |
| q) List 3 specific ways in which you can lower S in order to reach your goal? |
1) |
|
| 2) |
|
| 3) |
|
| Q |
Annual Holding Cost |
Annual Ordering Cost |
Total Cost |
|
| 50 |
|
| 75 |
|
| 100 |
|
| 125 |
|
| 150 |
|
| 175 |
|
| 200 |
|
| 225 |
|
| 250 |
|
| 275 |
|
| 300 |
|
| 325 |
|
| 350 |
|
| 375 |
|
| 400 |
|
| 425 |
|
| 450 |
|
| 475 |
|
| 500 |
|
| 525 |
|
| 550 |
|
| 575 |
|
| 600 |
|
| 625 |
|
| 650 |
|
| 675 |
|
| 700 |
|
| 725 |
|
| 750 |
|
| 775 |
|
| 800 |
|
| 825 |
|
| 850 |
|
| 875 |
|
| 900 |