01
Percentage off
What the shopper feels
“They noticed I was interested. This offer showed up right when I was deciding, not for everyone on the site.”
Because the offer follows behavior instead of a sitewide timer, it reads as a response to their session, not a broadcast promotion.
Psychology
Price anchoring relief
A timely % off lowers perceived cost at the decision moment without training every visitor to wait for a coupon.
Conversion impact
Reduces price friction when intent is already visible: the shopper was evaluating, not bouncing.