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Research docsHow lot values work

Auctions

How lot values work

Every number on a lot comes from its manifest and real eBay sold listings. This page spells out each one, the rules behind it, and what it leaves out.

How each line gets a price

  1. Each manifest line is keyed by its UPC, or by its title when there’s no UPC.
  2. Resellbot searches eBay sold listings for it, up to 50 sold results per search.
  3. UPC results pass a rule-based conflict filter. Title matches are checked by AI, which gives each candidate listing a confidence.
  4. The line is priced at the middle (median) sold price of its matches, times its units.

Which lines count

A line is counted when both of these are true:

  • It’s a Same UPC match, or an AI match at 80% confidence or higher.
  • It has at least 2 matched eBay sold listings.

Only counted lines feed profit, max suggested bid and time to profit. Every other line counts $0 there, shown as “Not counted” or “No comps”.

Match label What it means Counted?
Same UPC The sold listing has the same UPC. Yes, 2+ sales
AI match: clear The AI is at least 95% sure it’s the same product. Yes, 2+ sales
AI match: 80%+ sure The AI is at least 80% sure. Yes, 2+ sales
Name only A name match that isn’t confirmed. No
Different product The listings found are a different product. No
No comps No eBay sold listings were found. No

The numbers on a lot

Comp value

Comp value equals sum of median sold price×units
Over every line with any eBay price, including lines that aren’t confirmed, before costs.

Counted value

Counted value equals sum of median sold price×units
Over counted lines only. Profit, the max suggested bid and time to profit start here.

Total cost

Total cost equals current price×(1+buyer premium)+freight
The buyer premium applies when the site reports one, and freight when it’s known. On fixed-price lots, the current price is the fixed price.

Profit at current price

Profit at current price equals counted value×(1−13.5%)−total cost
13.5% covers eBay selling fees, so × (1 − 13.5%) is the same as × 0.865.

Profit %

Profit % equals profit at current pricetotal cost

Max suggested bid

The most you can pay and still make 25% profit on your cost, after 13.5% fees, the buyer premium (when the site reports one) and freight (when it’s known). On fixed-price lots it’s called the max suggested price.

Max suggested bid equals counted value×0.865÷1.25−freight1+buyer premium
× 0.865 keeps what’s left after 13.5% fees. ÷ 1.25 leaves room for 25% profit on cost.

Time to profit

An estimate of how long until a lot pays for itself. Each counted product sells at its own eBay pace from the last 90 days, all at the same time, until the proceeds after fees cover your total cost.

Time to profit equals the first day when proceeds so far×0.865≥total cost
Proceeds so far: every counted product selling at its own pace from the last 90 days of eBay sales.

It reads like “Under a day”, “~3 days”, “~4 weeks” or “~4 months”. It’s optimistic, because it assumes you capture each product’s full observed pace. Treat it as an estimate, not a forecast.

Potential profit

A labelled what-if. It adds the unmatched items, valued at the same share of list price that the matched items sold for.

It never feeds the max suggested bid or time to profit, and it isn’t expected profit.

A worked example

Amazon · 6 pallets of health & beautyB-Stock auction

Counted value
$48,872
After 13.5% eBay fees
$42,275
Total costCurrent bid $15,200 + freight $963, no buyer premium
−$16,163
Profit at current price$26,112 ÷ $16,163
$26,112 · 162%
Max suggested bid$42,275 ÷ 1.25 − freight $963
$32,857
Time to profit
~4 days

A real lot, captured September 29, 2026. Rounded to the nearest dollar.

The current bid is under the max suggested bid, so at this price the lot would clear 25% profit on cost.

Evidence

Each lot is rated Strong, Fair or No counted comps. A strong line is a counted line with at least 5 comps and at least 5 sales in the last 90 days.

Freight

Where What you see
B-Stock auctions An automatic reference estimate to the East Coast.
B-Stock lots A carrier quote to your own address, with “Quote to my address”.
Other sites The seller’s listed shipping where there is one. Otherwise, “Freight quote needed”.

When freight isn’t known, profit and the max suggested bid leave it out, so get a quote before you bid.

What isn’t included

These are estimates, not guarantees. Check the manifest, condition and freight before you bid.

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