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Business & Tax
Most pricing damage comes from a handful of repeatable errors. Each one has a cost you can calculate and a fix that takes less than a week.
By FreeCalculators Editorial · Published 2026-09-01 · Updated 2026-09-04 · 4 min read · 968 words
Pricing errors in small businesses are remarkably consistent. Confusing markup with margin, discounting without checking the volume required, leaving prices static while inputs inflate, and pricing from cost while ignoring what the customer gains account for most of the damage. Each has a calculable cost, and none of them require new software to fix — only a decision and a spreadsheet column.
| Mistake | What it costs | Fix |
|---|---|---|
| Quoting markup as margin | Up to 17 points of margin at 50% markup | Add a margin column beside every markup |
| Never raising prices | 7 to 8 points over three years of input inflation | Annual review on a fixed date |
| Discounting without volume math | 40% of profit for a 10% discount at 25% margin | Publish the volume required per discount level |
| Pricing from cost only | The entire gap between cost-plus and customer value | Quantify customer gain on top 20% of catalogue |
| One price for all segments | The premium the least price-sensitive segment would pay | Fence by urgency, volume, or terms |
| Ignoring payment and freight costs | 3 to 8 points of contribution | Move both into the variable cost line |
| Allocating overhead on revenue | Wrong product kept, right product cut | Allocate on the cost driver |
| Uniform discounts across the catalogue | Deepest cut lands on thinnest margin | Cap discounts as a share of item margin |
| Rounding prices down | 1 to 2 points, silently | Round up to the nearest sensible ending |
| No price floor | Unlimited: quotes below cost get accepted | Publish a floor per item and require approval |
Static prices feel safe because no customer complains. Input costs, however, do not pause, and the margin erosion is invisible in a profit and loss statement that shows growing revenue.
Three years without a price increase (2026)
Year 0: price $100, variable cost $60, contribution margin 40.0% Input costs rise 4% per year for three years Year 3 variable cost: $60 x 1.04^3 = $67.49 Price still $100: contribution margin now 32.5% Contribution per unit falls from $40.00 to $32.51 On 8,000 units per year, that is $59,920 of lost contribution Restoring a 40% margin now requires a price of $112.48 A single 12.5% increase, instead of three of about 4%
Both the loss and the awkward correction were avoidable. Small annual increases track the cost base and pass unnoticed; a 12.5% correction after three years of silence is the increase customers argue about.
A pricing calendar needs an external trigger as well as a date. The Bureau of Labor Statistics (BLS) publishes the Producer Price Index by industry and commodity, which shows how input prices in your category have moved over any period. Comparing that index against your own last price change makes the size of the overdue correction visible before a customer conversation, and gives the increase a defensible basis beyond "our costs went up".
Fix the mistakes in the order of the table. The first three are usually worth more than the remaining seven combined and take about a day between them.
Comprehensive Guide
Read our business and tax guide for margins, payroll, and tax planning.
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How this guide was created
This guide was written and reviewed by FreeCalculators Editorial, drawing on published formulas, official government sources, and real calculator outputs from our 4 calculators in this category. Every claim is sourced; every formula is auditable. Read our review policy.