La guía detallada que aparece a continuación (explicación, ejemplo resuelto, limitaciones, preguntas frecuentes y fuentes) está por ahora solo en inglés.
Calculadora de margen de beneficio: cómo funciona
Profit is revenue minus cost. Margin and markup both describe profit as a percentage, but they divide by different things. Margin divides profit by the selling price, so it says how much of each unit of sales you keep. Markup divides profit by cost, so it says how much you add on top of what you paid.
Enter a cost and a selling price to get profit, margin and markup. Or enter a cost and a target margin to find the price that achieves it. Because margin is based on price, the price for a target margin is cost ÷ (1 − margin), not cost × (1 + margin), which is a common pricing mistake.
Use it when you are pricing a new product, checking whether a supplier's price rise hurts you, or comparing a quote with your costs. Seeing margin and markup together prevents the common mix-up where a seller adds 30% to cost and then expects a 30% margin.
Fórmula e hipótesis
Fórmula
Beneficio = ingresos − costeMargen % = beneficio ÷ ingresos × 100Recargo % = beneficio ÷ coste × 100Precio para un margen objetivo = coste ÷ (1 − margen %)
Hipótesis
- El margen se calcula sobre los ingresos; el recargo, sobre el coste.
- Los costes son por unidad y no incluyen impuestos, salvo que los añadas al coste.
Ejemplo resuelto
Cost 600, selling price 800
- Profit = 800 − 600 = 200.
- Margin = 200 ÷ 800 = 25%.
- Markup = 200 ÷ 600 = 33.3%.
- To reach a 40% margin on the same cost: price = 600 ÷ (1 − 0.40) = 1,000.
Resultado: A 25% margin equals a 33.3% markup; hitting 40% margin needs a price of 1,000.
Limitaciones
- This is gross margin per unit. It does not include overheads, salaries, rent, advertising, or tax.
- Costs are per unit and exclude sales tax unless you include it. Do not mix tax-inclusive prices with tax-exclusive costs.
- A margin cannot reach 100% for a product with a cost, but markup can exceed 100%.
- Average margins differ widely between industries; there is no universal "good" number.