Miami’s Brickell skyline photographed on 6 February 2010, inside the quarter this record is set in. Photograph: Averette · CC BY 3.0 · Wikimedia Commons

Show your assumptions

What would it be worth?

A narrow calculator with a real dataset is better than a broad one that invents precision. The launch edition starts with one FHFA property-index illustration.

DatasetStarting amount

Index-tracking illustration

$850,000

Annualized index change 7.8%Major near-term drawdown −7.8%Inflation adjustment Not included

Method and source

Index-based illustration, not an appraisal or investment return. Excludes financing, taxes, insurance, maintenance, improvements, transaction costs and rent.

Series: FHFA All-Transactions House Price Index for Miami-Miami Beach-Kendall, FL (MSAD), ATNHPIUS33124Q

Federal Reserve Bank of St. Louis / FHFA data ↗

Formula: starting amount × ending index ÷ starting index. Annualized change is the compound rate between the two index observations. This is a counterfactual estimate, not money somebody literally lost.