Keystone pricing sets retail price at roughly double the cost price. Use this calculator to get the keystone price and gross margin.
Use this calculator when you need a fast, reliable answer without opening a spreadsheet. Enter your figures below and press Calculate. PercentNinja shows the key outputs you typically need for pricing decisions, VAT checks, ecommerce payouts or ad reporting.
When to use this
Checking a price before you publish it on your website or marketplace
Planning profitability (margin, fees or VAT) before running ads
Quick sanity-checks for invoices, quotes or campaign reports
Calculate
Results are estimates for informational purposes only and may be rounded.
