A clear result in a few inputs.
- Enter the requested values.Use consistent units and the real values for your scenario.
- Read the main result and breakdown.NumLuma recalculates immediately when an input changes.
- Check the formula and assumptions.Use the supporting context before making a real-world decision.
What this calculator does
Pricing for a target margin is different from adding that same percentage to cost. The correct relationship divides cost by one minus the desired margin. NumLuma also shows the resulting dollar profit and equivalent markup so the distinction is visible.
What to know before you use the result
- Price = cost ÷ (1 − target margin).
- Target margin must be below 100%.
- The result only reflects the cost amount entered; taxes, fees and other costs are not added automatically.
Common mistakes to avoid
- Adding 30% to cost and calling the result a 30% margin.
- Using an incomplete unit cost while expecting a fully loaded margin.
- Ignoring transaction fees or discounts that reduce realized revenue.