
Give Round or Precise Discounts
Round percentages seem big, while decimal percentages seem urgent.
Which discount is better: 24.7% or 25%?
It depends.
Round numbers can feel larger: A drink was more energizing with 100mg of caffeine (vs. 102mg;Â Pena-Marin & Bhargave, 2016;Â Thomas et al., 2010).
However, precise numbers feel unstable. You imagine 24.7 on a narrow scale in which any movement — even a slight nudge — can change this number.

Subconsciously, 24.7% can easily change. Perhaps even disappear. Therefore, customers feel motivated to grab this discount while it's still available. Indeed, customers were motivated by a 6.8% (vs. 7%) discount because they believed it would end sooner (Jha et al., 2023).

Separate Your Discounts When Possible
All else equal, customers prefer coupons to visibly reduced prices.
Consider a $10 discount.