Research Article
Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes
Table 19
DOL’s indications.
| Parameter | DOL value | High | Low |
| Variable costs (revenues and fixed costs are fixed) | High | Low |
| Fixed costs (revenues and variable costs are fixed) | Low | High |
|
Revenues up (variable and fixed costs are fixed) | Greater profits | Lower profits |
|
Revenues down (variable and fixed costs are fixed) | Greater losses | Lower losses |
|
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