Collector-car auction economics
Compare acquisition, transport, restoration, and holding costs with net auction proceeds and a break-even sale price. Change the inputs to update the chart or diagram.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
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How it works
- Total acquisition and holding cost = × (1 + ÷ 100) + + + +
- Net sale proceeds = × (1 − ÷ 100) −
- Net transaction profit or loss = Net sale proceeds − Total acquisition and holding cost
- Break-even sale hammer price = (Total acquisition and holding cost + ) ÷ (1 − ÷ 100)
- Worked example: A USD 50,000 hammer price, 10% buyer premium and USD 6,000 in other acquisition and holding costs total USD 61,000. Selling at USD 65,000 with a 10% seller fee and USD 100 fixed fee still produces a loss.
- Net sale proceeds = 65,000 × 0.90 − 100 = 58,400 USD; Net transaction profit or loss = 58,400 − 61,000 = −2,600 USD; Break-even sale hammer price = 61,100 ÷ 0.90 ≈ 67,888.89 USD.
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
All amounts use one currency. Purchase tax and import charges must be supplied by the user; this is not a tax calculation. Percentage fees are effective flat rates for the chosen lot; tiered schedules must be converted to their actual effective rate. Profit excludes income or capital-gains tax and currency changes. Sale price is the hammer price before buyer premiums.
