| Extra cost per breakdown without the spare part in stock (C) | 0 |
| Probability that the spare part will be used (P) | 0 % |
| Expected downtime cost without the spare part (=C*P) | 0 |
| Expected holding cost of the spare part (H) | 0 |
| Expected obsolescence cost if the spare part never will be used (O) | 0 |
| Total spare part costs (=H+O) | 0 |
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