Price on the Add to Cart button: -2.03% revenue per visitor

LostProduct page · 2025-07-29

Dave Diederen added the product price to the Add to Cart button, and revenue per visitor fell 2.03%. Conversion rate dropped 1.98% and order value did not change. After more than 2,000 orders, the original button stayed.

-2.03% revenue per visitor
  • Conversion rate: 1.44% to 1.41% (-1.98%). Slightly fewer visitors bought.
  • Revenue per visitor: $1.45 to $1.42 (-2.03%). Estimated at about -$17,405 a month by the testing tool.
  • Profit per visitor: $1.03 to $1.01 (-1.75%). The confidence range ran from -13% to +11%, so this is close to flat.
  • Average order value: no change ($100.81 vs $100.75).

The change

Control (A)
header
title
rating
price
variant picker
Add to cartREPLACED
description
Variant (B)
header
title
rating
price
variant picker
Add to cart – [price]NEW
description

Price added inside the Add to Cart button label

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

The standard Add to Cart button without the price on it.

Variant

The same button with the product price added to its label.

Why it likely lost

Our reading of the result, not the practitioner's claim.

Caveats: All the confidence ranges cross zero, so the honest reading is no meaningful gain and a possible small loss. Test length was not shown, and this was one Shopify brand; Dave Diederen notes they have seen it win elsewhere.

Who ran it

Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.

How to run this test on your store

Hypothesis
If we add the price to the Add to Cart button, then conversion rate will rise because shoppers confirm the cost without looking away from the button.
Primary metric
Revenue per visitor
Guardrails
  • Add-to-cart rate
  • Average order value
Who should test it
Stores where the price sits far from the button, such as long pages or sticky mobile bars. If price is already right above the button, expect little or no gain, as here.

Questions

Should you put the price on the Add to Cart button?

In this test it lowered revenue per visitor by 2.03% over 2,000+ orders. Results vary by store, so test it rather than assume it helps.

Does showing price on the button change average order value?

No. AOV stayed at about $100.80 in both groups here.

Is a 2% drop a real loss?

The confidence ranges here crossed zero, so it may be flat. Either way, the change did not earn its place.

Similar tests

Add-to-cart & CTA buttons tests Pricing, discounts & savings display tests Ad-to-page message match tests All product page tests