# Money Change Calculator

> Calculate change due and break it into common U.S. bills and coins using the fewest pieces.

Page: https://askcalculators.com/calculator/money-change-calculator/
Definition: https://askcalculators.com/calculator/money-change-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/money-change-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/money-change-calculator/?purchaseAmount=37.42&amountTendered=50

## Inputs
- purchaseAmount: Purchase amount; type=money; required; default=37.42; min=0
- amountTendered: Amount tendered; type=money; required; default=50; min=0

## Outputs
- changeDue: Change due; format=currency; primary
- pieceCount: Bills and coins returned; format=integer
- amountShort: Amount still owed; format=currency
- status: Status; format=text

## Formula
change due = amount tendered − purchase amount; denominations are selected greedily in descending value

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