Pricing errors often come from missing small costs rather than from the product cost itself. When those costs repeat across hundreds of orders, they can erase a meaningful part of the margin.
1. Packaging
Boxes, envelopes, tape, labels, protective material and inserts all have a per-order cost. Even inexpensive supplies should be included when volume is high.
2. Fixed transaction fees
Some marketplaces or categories apply a fixed fee in addition to percentage commission. This has a particularly large impact on low-ticket products.
3. Advertising
Sponsored listings and paid traffic may be essential for sales, but advertising spend needs to be included in profitability analysis. Use an average percentage that reflects your real campaign performance.
4. Subsidized logistics
The seller may absorb part of shipping, fulfillment, handling or collection costs. These amounts should be treated as part of the economics of the order.
5. Taxes
Tax treatment depends on the business and jurisdiction. Use the percentage that actually applies to your operation rather than copying a generic example.
6. Returns, losses and damaged items
Not every order ends perfectly. Returns, lost inventory, damage and customer-service concessions can create an average cost that should be monitored over time.
7. Operational overhead
Software, labor, storage, accounting and other overhead may not be easy to assign to one product, but ignoring them entirely can overstate profitability.
At minimum, track these costs separately and understand how much gross profit is available to cover them.
Apply what you learned directly with the free Ajuda Seller tools.
Open Ajuda Seller tools →Frequently asked questions
Do I need to add every overhead item to each SKU?
Not necessarily. Some sellers allocate overhead separately, but it should still be considered when evaluating overall profitability.
Why are fixed fees important for cheap products?
A fixed fee represents a larger percentage of a low selling price.
How should I estimate return costs?
Use historical data when available and calculate an average expected cost across sales.