From operating income and revenue, compute the operating margin that reflects core-business profitability efficiency.
Input Data
Results
At a glance:Operating margin is operating income divided by revenue, measuring the profitability of core business operations before financing and tax.
Formula
operatingMargin = operatingIncome / revenueAmount × 100%
$$\text{Operating Margin} = \dfrac{\text{Operating Income (EBIT)}}{\text{Revenue}} \times 100\%$$How to Use
- Enter the operating income (EBIT).
- Enter the revenue.
- Read the operating margin percentage.
FAQ
How do operating margin, gross margin and net margin differ?
They are the three layers down the income statement. Gross margin deducts only direct costs; operating margin further deducts operating expenses (rent, payroll, marketing), reflecting core-business efficiency; net margin finally deducts interest and tax, showing the bottom-line profit. Reading them together tracks where profit leaks across cost, expense, financing and tax layers.
Why does operating margin exclude interest and tax?
Interest depends on the financing structure and tax on the tax environment — neither says much about 'how well the core business is run'. Excluding them (using EBIT) lets companies with different debt levels and tax regimes be compared on the same operating basis, which is why EBIT and operating margin are so common in investment analysis.
What does a falling operating margin mean?
It may mean operating expenses grow faster than revenue (payroll, rent, marketing swelling), price cuts or bigger discounts squeezing profit, or up-front costs in an expansion phase. Persistent decline warrants attention — break it down into a cost issue versus a pricing/demand issue; occasional swings may be seasonal or one-off, so read it with the trend and peers.
How do Hong Kong's rent and payroll affect operating margin?
Hong Kong's shop rents and labour costs are among the highest in the world, and both are operating expenses that bear directly on the operating-margin layer. Rent-sensitive sectors like retail and dining can see margin pulled down sharply at lease renewal or minimum-wage adjustments. So for local firms, managing operating margin is often about site selection and rent negotiation, headcount control and sales-per-square-foot, not just revenue growth.
What is the relationship between operating margin and EBITDA?
Operating income (EBIT) already deducts depreciation and amortisation; EBITDA adds those two non-cash items back (EBITDA = EBIT + depreciation + amortisation). For heavy-asset industries with large depreciation, the EBITDA margin will be clearly above the operating margin. Reading both distinguishes profit earned from operations versus profit shaped by depreciation policy, but do not forget that assets eventually need capital-expenditure replacement.
References
Content review: Calculatorism Finance Team. Results are for reference only; please refer to the relevant authorities for the official figures.