Key takeaways
- Noticeability scales with price.
- Break-even volume loss depends on margin.
- Test on a segment first.
The noticeability threshold
The Weber-Fechner law says the smallest change people perceive is a fixed fraction of the starting level. At a 7% threshold on a $50 product, changes under $3.50 tend to go unnoticed.
Check the profit
A rise from $50 to $54 is 8%, above that threshold. With elasticity of -1.2 and a 60% margin, revenue falls about 1.5% but profit rises about 3.3%. The break-even volume loss is 11.8%, so a larger drop would erase the gain.
Roll it out
Test on new customers or one region, watch volume for four to six weeks, and explain added value in your message.
Free tool / Psychophysics
Price Increase Tester How much can price rise before buyers notice?
Questions about Unit Economics and Measurement
Should I raise prices in several small steps?
Small steps stay under the threshold, but customers notice the total over time.
How do I find elasticity?
Run a price test or compare past price changes with sales.
Key terms
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