Finance calculator

Discount Calculator

Calculate sale price and amount saved from an original price and discount percent.

Instant result

Result

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Enter values to calculate.

Inputs—

Mode—

Formula—

Formulas

Core equations used by this calculator.

PrimarySale = original × (1 − d/100)

iRuns locally in your browser. Results are informational — verify critical financial decisions independently.

How to use

Follow these steps for a clear answer.

1

Enter the known values

Fill in each field with amounts and rates as labeled.

2

Calculate

Results update as you type; compare scenarios below when available.

3

Read the outputs

Check the result panel for the primary figure and supporting totals.

Example calculations

Common configurations with formula and result.

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Worked example

80 with 25% off → sale 60 · saved 20

Sale = original × (1 − d/100)

See result panel

Discount calculator specification

Version 1.0.0 · Last reviewed 2026-07-28

Definition: A percentage discount reduces the original price: sale = original × (1 − d/100). Savings equal original − sale.
What it calculates: Sale price and amount saved.
Inputs: Values shown on the calculator form
Outputs: Primary result in the result panel
Formula: Sale = original × (1 − d/100)
About this calculator

A percentage discount reduces the original price: sale = original × (1 − d/100). Savings equal original − sale.

Formula

Sale = original × (1 − d/100)

Example

80 with 25% off → sale 60 · saved 20
Assumptions: Fixed rates and terms as entered; no fees or taxes unless modeled.
Calculation runs locally in the browser.
Units: Currency units as entered (dimensionless rates in %)
Boundary conditions: Zero or missing required fields yield zero or empty results.
Negative inputs are treated as zero.
Example: 80 with 25% off → sale 60 · saved 20
Validation cases: 80 · 25% → sale 60
100 · 0% → sale 100
50 · 10% → sale 45
Sources: Standard time-value-of-money / managerial accounting identities
Last reviewed: 2026-07-28
Calculation version: 1.0.0

Frequently asked questions

Key distinctions behind the calculation.

How does the Discount Calculator work?

It uses Sale = original × (1 − d/100). All math runs locally in your browser.

Can I share my inputs?

Yes. Use Copy link in the result panel — the URL stores your current inputs.