When you divide **revenue by OPEX** (Operating Expenses), you get the **Operating Expense Ratio** or sometimes referred to as the **Operating Efficiency Ratio**. The formula is: $ \text{Operating Efficiency Ratio} = \frac{\text{Revenue}}{\text{OPEX}} $ This metric shows how effectively a company generates revenue relative to its operating expenses. A higher ratio indicates that the company is generating more revenue per dollar of operating expense, reflecting greater efficiency in managing its overhead and operating costs.