Product Detail Page
Charm Pricing vs Round Number Pricing A/B Test
The comparison between TRY 299.99 and TRY 300 changes both the price and how it is displayed. Do not attribute the result to price framing alone; compare the effect of each price on total revenue and margin.
A/B test scenario. This page is a test plan, not the result of a real experiment.
- Product page
- Gross revenue per visitor
Variant A vs Variant B
The same value, presented two ways.
- Changed
- Format
- Page
- Product page
- Difference
- changed
Hypothesis
If the price sits just below a round number, the product may feel like it belongs in a lower price bracket and be easier to buy, while the whole-number price collects slightly more on every order. Which one comes out ahead depends on how those two effects balance, and that could move gross revenue per visitor in either direction.
Test plan
When to run this test
This test is worth running when prices in one category appear in mixed formats, session recordings show visitors leaving the product page right after seeing the price, or support tickets show price complaints piling up. The charm price wins only if it lifts product detail clicks and purchases enough to cover the small amount it gives up per order. The whole-number price wins by holding conversion steady while bringing in slightly more per order. If you cannot hold promotions constant during the test window, wait; keep the price gap small and defined in advance, because even a small gap changes what shoppers pay.
How to measure success
Gross revenue per visitor
Compare total gross revenue per assigned visitor to check whether rounding changes revenue.
Also track
- Purchase conversion rate (CR)Track purchase rate at each price point.
- Product detail click-through rateCompare clicks from the listing to product pages.
- Gross marginAccount for the actual price difference and the mix of products purchased.
- Price-related complaintsTrack price-related support contacts or complaints in both arms.
How to set it up
- Price setDefine the rounded and whole-number price for every eligible product before launch.
- CategoryReview results within product categories defined in advance.
- SurfacesKeep each visitor's assigned price consistent on listings, product pages and checkout.
- TypographyKeep font size, decimal styling and badges unchanged.
- PromotionsKeep discounts and promotion terms fixed during the test.
What to watch when reading the result
- 1An option that leads on conversion rate is not the winner unless gross revenue per visitor rises too; make the call on that metric. Also confirm that gross margin holds and price-related complaints do not rise.
- 2Read the effect category by category, within the price sets and predefined categories you tested. If you ship a format, apply it across the whole category rather than leaving both formats side by side.
- 3Revenue per visitor is noisier than a purchase rate, so a small difference can easily get lost in the noise. Before launch, try a few lift values with the current purchase rate in the sample size calculator, and compare the sample per variant each one needs with your traffic. A revenue metric needs an even larger sample, so if the result stays unclear, do not report it as a gain or a loss.
Frequently Asked Questions
Does this test isolate price formatting?
No. The alternatives change both the actual price and its presentation. Interpret the result as the combined change. Define the small price difference in advance, since even a small difference changes the amount charged.
Is conversion rate enough to choose a winner?
No. Use gross revenue per visitor as the primary outcome and monitor gross margin. Account for the actual price difference and changes in the products purchased.
Should the assigned price stay consistent across pages?
Yes. Preserve it across listing, product and checkout pages. Define both prices for each eligible product before launch and avoid inconsistent category-wide formatting.
More tests in Product Detail Page
All testsDiscount Presentation A/B Test on Product Pages
Product pageRevenue per visitor (RPV)
An open experiment idea on discount presentation, where the wording, placement and framing of the offer are the variables still to be pinned down.
Shipping and Returns Emphasis A/B Test Example
Product pagePurchase conversion rate (CR)
A test idea that makes shipping and return terms visually prominent on a product page, built on the idea that clarity here settles buying hesitation.
Clear Benefit Info on Product Pages: A/B Test Idea
Product pagePurchase conversion rate (CR)
An experiment idea for product pages: presenting installment, free shipping and easy return details clearly. See the tested element, the setup and the KPI.