Math & Numbers

Percentage & Discount Calculator

Calculate percentages, discounts, and percentage changes.

100% Client-Side Zero Server Logs Instant Execution

1. Percentage of a Value

What is X% of Y?

Result: 37.5

2. Percentage Ratio

X is what percent of Y?

Result: 25%

3. Percentage Change

From Old Value to New Value

Change: +25%

4. Discount & Sale Price

Original price with X% discount

minus

Final Price: $ 96.00

How It Works

A multi-purpose percentage suite for tax calculations, financial modeling, price markdowns, and rate changes. All computations update instantly in realtime with zero latency.

Privacy Guarantee

Your data never leaves your browser. All computations run locally using modern JavaScript algorithms and native Web APIs.

Zero uploads to external cloud databases
No invasive trackers or third-party cookies
Instantly cleared when you close the browser tab