Calcule porcentajes, aumentos o disminuciones porcentuales y diferencias porcentuales al instante con fórmulas completas paso a paso.
Cómo usar esta herramienta
- Select the calculation mode: Percentage of a number, Percentage Increase/Decrease, or Percentage Difference.
- Enter the primary and secondary values in the numerical inputs.
- View the calculated result and mathematical breakdown instantly.
- Copy the result with a single click.
Fórmulas y metodología de cálculo
Percentage of a Number: Result = (Percentage / 100) × Base Number
Percentage Increase/Decrease: Change % = ((New Value - Original Value) / |Original Value|) × 100
Percentage Difference: Difference % = (|Value A - Value B| / ((Value A + Value B) / 2)) × 100
Ejemplos resueltos
What is 15% of $80?
Escenario: Calculating a 15% tip on an $80 restaurant check.
Paso a paso: (15 / 100) × 80 = 0.15 × 80 = 12
Resultado: $12.00
Percentage Increase from 50 to 75
Escenario: Measuring web traffic growth from 50k to 75k visitors.
Paso a paso: ((75 – 50) / 50) × 100 = (25 / 50) × 100 = 50%
Resultado: +50.00% Increase
Formatos admitidos, límites y privacidad
Entradas y límites: Divisors cannot be zero (division by zero is undefined). Supports positive and negative real numbers.
Cero recopilación de datos: Esta herramienta se ejecuta al 100% dentro del motor JavaScript del navegador del cliente. Ninguna pulsación de teclas, valores, archivos o resultados calculados se almacenan o transmiten a ningún servidor remoto.
Preguntas frecuentes
How do I calculate what percentage one number is of another?
Divide the part by the whole and multiply by 100: (Part / Whole) × 100.
What is the formula for percentage increase or decrease?
Percentage change is calculated as: ((New Value – Old Value) / |Old Value|) × 100.
Can this calculator handle negative numbers or decimals?
Yes. It accepts positive numbers, negative values, and arbitrary floating point decimals with full precision.