Work the numbers.
Then make the offer.
Start with a collection reference value and your buying rate. Add realistic resale assumptions to see the estimated spread after modeled costs.
Your assumptions
Illustrative values to get you started. All amounts are in USD.
The total you established after reviewing the cards.
Applied to the reference value to calculate the offer.
Optional. Leave blank to use the reference value. Enter 0 to model no sales.
Applied to expected resale proceeds. Use 0 if no percentage fee applies.
Shipping, fixed fees or other modeled costs. Exclude the purchase offer.
$1,000.00 × 70%
Model the other side of the deal.
- Expected resale proceeds
- $1,000.00
- Purchase offer
- − $700.00
- Selling fees (10%)
- − $100.00
- Other direct costs
- − $40.00
16% of expected resale proceeds, after modeled costs.
This example assumes the collection resells for its reference value. This is an estimate, not actual profit. It assumes the modeled sales happen and excludes any costs you have not entered.
One reference.
Two different questions.
What would you offer? The reference total multiplied by the buying rate gives the purchase offer. Adjust the percentage to test a different offer.
What might remain after the sale? Expected resale proceeds minus the purchase offer, selling fees and direct costs give the estimated spread. The calculator rounds the offer and selling fees to cents. Real results require real sales and a complete expense record.
Read the collection buying guideKnow what the numbers mean.
What is a collection buying percentage?
It is the percentage of your chosen reference value that you offer to pay. A collection with a $1,000 reference value at a 70% buying rate produces a $700 offer. The rate is an input you choose, not a recommendation from this calculator.
Why separate reference value from expected resale value?
The reference total anchors the offer. Expected resale value is what you assume you will actually collect when the cards sell. Discounts, card condition, selling channels and unsold cards can make that different from the reference total.
Is the estimated resale spread my profit?
No. The spread subtracts the proposed offer, modeled selling fees and entered direct costs from expected resale proceeds. Actual results depend on completed sales, all expenses and any remaining inventory. Taxes, financing costs, returns and your time are not included unless you model them separately.
What does the selling-fee percentage apply to?
Selling fees are calculated on expected resale value, not the reference value or the purchase offer. Add fixed fees, shipping or other known costs to direct costs. Avoid entering the same cost twice.
Are these live card prices?
No. This calculator uses only the numbers you enter and does not look up cards or market prices. Check card identity, printing and condition before choosing a reference value.