Marketplace markup needs to cover the costs of a particular sales channel. Adding a percentage to your store price does not show what remains after commission and other expenses. Define the calculation base before configuring export rules, then reproduce the result manually for sample products.
Markup and margin use different bases
Markup is calculated against cost, while margin is calculated against revenue. If an illustrative cost is 1000 and the selling price is 1250, the difference is 250. The markup is 25%, while the margin before other expenses is 20%. Entering the same percentage into both formulas produces different prices.
All numbers here are teaching examples, not current Rozetka, Prom or other marketplace tariffs. Taxes, returns, payment charges and shipping must be assessed under your actual business arrangements.
Account for commission on the selling price
If commission c applies to the entire selling price P and other included costs total C, the amount remaining before any omitted costs is P × (1 − c) − C. For a desired amount G, the illustrative price is (C + G) / (1 − c). This works only under those assumptions, without additional thresholds or charging rules.
For C = 1000, G = 200 and an illustrative commission of 15%, the calculation is 1200 / 0.85 ≈ 1411.76. At a rounded price of 1412, commission is 211.80 and the amount remaining after commission and C is 200.20. Simply adding 15% to 1200 gives a different outcome.
Make price-band rules explicit
Lower- and higher-priced items may need different rules. Before entering them into a module, define whether each boundary is included, which source price is used and when adjustments and rounding occur. Avoid gaps and unintended application of two rules to the same value.
In Pricer PRO, verify available pricing controls against the installed version and selected channel. Do not assume that an exported price also changes the storefront price; inspect the rule’s scope and direction.
Validate the export before relying on it
- Confirm the current commission and its calculation base under the marketplace agreement.
- Test products below, exactly on and above every price-band boundary.
- Check promotional prices, currency conversion and rounding separately.
- Inspect the generated output and the price accepted by the channel.
- Reconcile an example order using all relevant costs.
Repeat this review when fees, exchange rates or purchase costs change. Keep the input values and expected output for a small regression sample, making it possible to detect an unexpected result after an update.
Use the ShopX catalogue to distinguish catalogue-export tools from order-management tools. A useful pricing rule produces a result that you can explain and reproduce for an individual product, rather than a percentage whose financial effect is unclear.





