Buy & trade calculator
Cash (buy) and store-credit (trade) offers for resale items. Saved on your device
How it works
For resale, trade-in and consignment counters: the buy price is the cash you'd offer (a lower percentage), and the trade price is store credit (a higher percentage). Set both percentages once in Settings — they're remembered on this device — then list the items and read off the totals. Everything stays in your browser.
Frequently asked questions
What's the difference between buy and trade?
Buy is the cash offer (usually a lower percentage) and trade is store credit (usually a higher percentage). Set both percentages in Settings.
Are my items and percentages saved?
Yes — they're stored locally in your browser so they're still here next time. Nothing is uploaded.
Who is this for?
Resale, trade-in and consignment counters — games, music, books, clothing, gear — anywhere you offer cash or store credit as a percentage of value.