LibraTool logoLibraTool
%
💰

Calculate Financial Percentages

Calculate interest, tax, commission, profit margins, and other financial percentages.

Sin necesidad de registro

What is X% of Y?

%
of
=
30

X is what % of Y?

is what % of
=
15%

Percentage change from A to B

→
=
+25%

Increase of 25%

Finance tips

💰

VAT / sales tax: "X% of Y" gives the tax amount. 20% VAT on £100 = £20 tax, total = £120. Or find the pre-tax price: total ÷ 1.20.

📈

Investment return: use "percentage change" from initial investment to current value. $1,200 → $1,500 = +25% return.

💡

Commission: 5% commission on a $4,000 sale = 5% of $4,000 = $200. Use "X% of Y" mode with X=5 and Y=4000.

🏠

Property price change: use "percentage change" to calculate how much a property has appreciated or depreciated since purchase.

Cómo funciona

1
Introducir
Enter your data into the tool above. Everything stays local to your browser.
2
Procesar
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

¿Por qué usar el nuestro?

✓Completamente gratis — sin costes ocultos, nunca
✓Sin cuenta, correo ni registro requerido
✓Los archivos nunca salen de tu dispositivo
✓Sin límite de tamaño de archivo en absoluto
✓Sin marcas de agua en ningún resultado

Also check out…

🏷️

Calculate Sale Prices and Discounts

Find the discounted price, savings amount, and per

🎓

Calculate Exam Scores and Grades

Convert raw exam scores to percentages, calculate

📊

Calculate Statistical Percentages

Find proportions, relative frequencies, and percen

🏃

Calculate Health and Fitness Percentages

Calculate body fat percentage targets, nutrition m

Preguntas frecuentes

Back to Calculadora de porcentaje