Question: Week 1 2 3 4 5 6 7 8 9 10 Requirement 30 12 72 11 24 42 35 30 75 68 Opening Inv. 0
| Week | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Requirement | 30 | 12 | 72 | 11 | 24 | 42 | 35 | 30 | 75 | 68 |
| Opening Inv. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lot for Lot production | 30 | 12 | 72 | 11 | 24 | 42 | 35 | 30 | 75 | 68 |
| Closing Inv. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Avg. Inv | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Holding cost (0.6 per unit per week) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Setup cost (132/production) | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 |
| Total cost (Setup + Holding cost) | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 | 132 |
The total cost across 10 weeks = 1320
| Week | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Requirement | 30 | 12 | 72 | 11 | 24 | 42 | 35 | 30 | 75 | 68 |
| Opening Inv. | 0 | 369 | 357 | 285 | 274 | 250 | 208 | 173 | 143 | 68 |
| One time production | 399 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Closing Inv. | 369 | 357 | 285 | 274 | 250 | 208 | 173 | 143 | 68 | 0 |
| Avg. Inv | 369 | 541.5 | 463.5 | 416.5 | 387 | 333 | 277 | 229.5 | 139.5 | 34 |
| Holding cost (0.6 per unit per week) | 221.4 | 324.9 | 278.1 | 249.9 | 232.2 | 199.8 | 166.2 | 137.7 | 83.7 | 20.4 |
| Setup cost (132/production) | 132 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total cost (Setup + Holding cost) | 353.4 | 324.9 | 278.1 | 249.9 | 232.2 | 199.8 | 166.2 | 137.7 | 83.7 | 20.4 |
The total cost across 10 weeks = 2046.3
b) Assume now that production capacity in any period is limited to a maximum production amount of 100. Create a feasible production plan with setups in periods 1, 3, 6, 8 and 10 considering this restriction. What is the cost of this plan? What happens if the maximal production is less than 40?
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