# What is 25% off 80? — Percentage Calculator

> See the sale price after 25% off 80 — you pay 60 and save 20. Calculate any discount, markup, tip, or percentage of a number, with step-by-step formulas.

- **Answer:** 60
- **Category:** Math
- **Interactive calculator:** https://youcalc.com/en/math/percentage/25-percent-off/
- **Price:** Free, no sign-up required
- **Full calculator:** [Percentage Calculator](https://youcalc.com/en/math/percentage/)
- **Pre-filled inputs:** `adj=80%2C25`

## Overview

25% off 80 leaves a sale price of 60, a saving of 20. Multiply the original price by (1 − 0.25): 80 × 0.75 = 60. Use the "Add / subtract a percent" card below for any price and any discount.

## Method

Each mode uses a direct formula. "What is X% of Y" computes (X / 100) × Y. "X is what % of Y" computes (X / Y) × 100, requiring Y ≠ 0. Percentage change is ((new − old) / |old|) × 100, signed, requiring the old value ≠ 0. Percentage difference is |A − B| / ((|A| + |B|) / 2) × 100, order-independent, requiring the two values not both be zero. "Add / subtract a percent" gives base × (1 + p / 100) and base × (1 − p / 100). All formulas follow standard mathematical definitions as documented on MathIsFun.

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- [Tip Calculator](https://youcalc.com/en/lifestyle-everyday/tip/)
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## Sources

- https://www.mathsisfun.com/percentage.html
- https://www.mathsisfun.com/numbers/percentage-change.html
- https://www.mathsisfun.com/percentage-difference.html

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Interactive version: https://youcalc.com/en/math/percentage/25-percent-off/ · From YouCalc — https://youcalc.com