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Merchandise pricing

Wholesale Costs Changed. Did Your Shelf Prices?

The delivery arrives, the shelves get filled, and the register keeps ringing. But the wholesale cost on the new invoice is higher—and nobody changes the selling price. A product that used to earn money can quietly become a product that loses money every time it sells.

By Station Pilot · · 6 min read

A busy shelf can hide a losing product

Imagine a bottled drink selling for $2.49 before sales tax. Its delivered cost used to be $1.50, leaving $0.99 per bottle before store operating expenses. Now the supplier charges $2.60 per bottle. If the shelf and register prices stay at $2.49, each bottle sells for $0.11 less than its merchandise cost.

Selling 300 bottles at that new cost produces a $33 gross loss before card fees, labor, rent, or utilities. More volume makes that particular loss bigger. This is an illustrative example, not a current supplier quote or a claim about how often stores sell below cost.

Same selling price, three different cost levels. All prices exclude collected sales tax.
Cost per bottleSelling priceGross profit per bottleGross margin
$1.50$2.49$0.9939.8%
$2.10$2.49$0.3915.7%
$2.60$2.49−$0.11−4.4%

Start with the cost of the item you actually sell

A case price is not a bottle price. Divide the merchandise cost for the case by the number of sellable units. A $48 case of 24 bottles costs $2.00 per bottle. If the new case price is $60, the bottle cost becomes $2.50—even if the packaging looks exactly the same.

Check the case count and product size, too. A smaller case at the same invoice price raises the per-item cost. A different UPC, multipack, or bottle size needs its own calculation. For cigarettes, confirm the number of sellable packs per carton rather than relying on memory.

Use the net merchandise cost after confirmed item discounts, with applicable nonrecoverable acquisition costs. Keep collected sales tax and refundable deposits separate. Allocate delivery charges consistently; do not mix a full delivery fee into one item and omit it from the rest. Ask your bookkeeper how to treat uncertain taxes or supplier credits.

Watch more than the headline price increase

The supplier does not have to announce a dramatic price change for your margin to shrink. A temporary allowance can expire, a rebate can stop, the case quantity can change, or a delivery charge can rise.

Compare the new invoice with the previous one for your highest-volume drinks, snacks, candy, tobacco, and other frequently reordered products. These are sensible starting points because small changes repeat across many sales. Use the exact item and pack size; a similar product name is not enough.

  • Higher case price or fewer units in the case
  • Expired invoice discounts or promotional allowances
  • Unconfirmed rebates that were treated as money already earned
  • A shelf promotion that continued after supplier support ended

Use one routine when each delivery arrives

Assign a specific person to the check and have the owner review exceptions. “The manager will take care of it” is not a reliable process unless someone confirms what changed and what was checked.

  1. Match the invoice to the quantity, size, and UPC received. Note shortages or substitutions.
  2. Calculate the current delivered cost per sellable item and compare it with the previous delivery.
  3. Check the actual register price, including active promotions, against that cost.
  4. Flag items below cost or below your chosen gross-margin target for an owner decision.
  5. If a price changes, update the register, shelf tag, and promotional sign together. Scan a test item and verify the receipt.
  6. Record the date, old cost, new cost, selling price, and person who completed the check.

Choose the response instead of raising everything blindly

A higher cost is a signal to review—not an instruction to apply the same increase across every shelf. Consider customer demand, competing alternatives, category performance, supplier options, and the role of that item in the basket.

Possible responses include changing the retail price, ending an unprofitable promotion, ordering a different product, negotiating terms, or accepting a smaller margin deliberately. A planned loss leader needs an owner-approved budget and review date. It should not be an unnoticed result of an old price.

Use recent delivered cost and replacement cost to guide future pricing decisions. That does not mean rewriting the historical cost of stock already sold. Merchandise gross profit and the cash needed to buy the next delivery answer different questions.

Keep the price check simple and separate from the daily totals

You can start with a paper sheet or a spreadsheet: item, units per case, net case cost, unit cost, retail price, margin, and last review date. The useful change is the habit of checking each delivery, not buying a complicated system.

Station Pilot helps owners organize daily sales, expenses, supplier activity, and records on iPhone. Use your supplier invoice and POS records for item-by-item merchandise cost and price checks. Station Pilot does not automatically monitor supplier price changes, maintain a merchandise pricebook, or change register prices.

Sources and further reading

All pricing examples are illustrative. Source links checked October 9, 2026.

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