# Profit Margin Calculator

> Find gross profit, margin, markup, and optional profit per unit.

Page: https://askcalculators.com/calculator/margin-calculator/
Definition: https://askcalculators.com/calculator/margin-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/margin-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/margin-calculator/?revenue=10000&cost=6500

## Inputs
- revenue: Revenue; type=money; required; default=10000; min=0.01
- cost: Cost; type=money; required; default=6500; min=0
- units: Units sold; type=number; optional; min=1

## Outputs
- grossProfit: Gross profit; format=currency; primary
- margin: Profit margin; format=percent
- markup: Markup; format=percent
- profitPerUnit: Profit per unit; format=currency

## Formula
Margin = (Revenue − Cost) ÷ Revenue × 100

- Markup: (Revenue − Cost) ÷ Cost × 100

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.