# Quick Percentage Calculator

> A simple, fast popup tool for calculating percentage discounts and percentage differences between values.

Canonical page: [https://chrome-stats.com/d/quick-discount-calculator](https://chrome-stats.com/d/quick-discount-calculator)

## Overview

- **ID:** `quick-discount-calculator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Space sausage
- **Category:** web-development,search-tools,shopping
- **Daily users:** 1
- **Version:** 2.3
- **Last updated:** 2026-01-26
- **First published:** 2024-08-21
- **Size:** 1.36 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/quick-discount-calculator/)

## Description

Quick Percentage Calculator is a lightweight browser extension designed to make percentage calculations fast and effortless.

The extension allows users to:
• Apply common percentage discounts with one click
• Enter custom percentage values
• Instantly see discounted prices
• Calculate the percentage difference between two numbers
• Copy results to the clipboard for quick reuse

All calculations are performed locally within the popup. The extension does not collect, store, or transmit any user data and does not require special permissions.

Quick Percentage Calculator is ideal for quick price checks, comparisons, and everyday percentage calculations without leaving the browser.

## Rankings

- #121,570 — Overall
- #146 — discounts
- #163 — discount
- #185 — calculator
- #234 — calculus

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/quick-discount-calculator)