What you actually clear when you sell a Bowman card

A card that sells for $190 does not pay you $190. Between the buyer's payment and your balance sit a final-value fee, a per-order fixed fee, shipping you paid for, and — if the card went through a grader — a submission cost that dwarfs all of them. None of that is exotic. What makes it dangerous is that it usually sits in someone's head as a vague “minus fees and stuff,” and a vague number cannot tell you a purchase was a mistake.

The buy side: compare delivered, always

Your cost basis is price plus shipping, not the number in the listing title. A $20 card with $9 shipping costs more than a $27 card shipped free. This matters twice over on small Bowman cards, where shipping is routinely 20–40% of the trade: it changes what you paid, and it changes every comp you compared it against. Where a listing does not state shipping, the honest reading is unknown — not zero.

The sell side: the take rate

A marketplace fee is a percentage of the total the buyer paid — including the shipping they were charged — plus a small per-order fixed fee. For trading cards on eBay, a working approximation is around 13% once the fixed fee is amortised over a typical sub-$100 card. That figure is an approximation, not a quote: the real take varies with category, store subscription, promoted-listing rate and international surcharges, and a promoted listing can add several points on its own.

A little over $163 on a $190 sale — about 86% of the headline. Do this arithmetic before you buy, not after you sell, because it is the net number that has to beat your cost basis. The net proceeds calculator runs those five lines with your own price, postage and fee rate.

Grading turns the arithmetic upside down

If the plan is to submit the card, the submission cost belongs in the cost basis. A single-card PSA Regular submission runs to roughly $105 all-in once the handling fee and insured return shipping are counted — and those two are per-submission, so they amortise sharply across a batch. The old hobby shorthand of “$25 to grade” survives only as bulk pricing for Collectors Club members with a minimum batch size.

That difference decides cases rather than nudging them. On a $45 raw card with a $190 PSA 10 and a $70 PSA 9, single-card Regular pricing needs an 86% gem rate to break even; the same card in a bulk batch needs about 10%. Same card, same market — the pipeline decides. The break-even calculator runs that comparison with your own numbers. (PSA changes tiers often; re-check current pricing before trusting any figure here.)

Why the fee rate should be visible and editable

A cost assumption you cannot see is a cost assumption you cannot argue with — and it silently rewrites every verdict downstream of it. Ours is a single setting, stated as an assumption, editable, and read from one place so no corner of the code can quietly use a different one. If your store subscription or promoted-listing rate makes 13.35% wrong for you, change it and every net figure moves with it.