Prices seem cheaper in different locations, particularly on the top and left.
Why the Left?
Objects on the right pull downward:
…because our eyes enter a visual field from the left, the left naturally becomes the anchor point or ‘visual fulcrum.’ Thus, the further an object is placed away from the left side (or the fulcrum), the heavier the perceived weight (Deng & Kahn, 2009, p. 9).
Prices might feel heavy toward the right:
Plus, we conceptualize numbers on a horizontal ruler — they get larger from left to right (assuming that you read from left to right). Thus, small numbers are associated with the left:
…people typically see small numbers to the left of larger ones, [so] they are likely to associate small numerical values with locations on the left (Cai, Shen, & Hui, 2012, p. 723)
Caveat: One competing mechanism is simulation fluency. You prefer stimuli to be located on the same side as your dominant hand (Casasanto, 2009). Since most people are right-handed, I suspect that prices might “feel better” toward the right.
Why the Top?
In one study, cookies seemed lighter toward the top of a package (Deng & Kahn, 2009).
Why? Because the cookies seemed lifted to this location — so, naturally, they must be lighter.
Prices might inherit this effect.
One study confirmed that prices seem expensive in the bottom-right (Park & Ma, 2019). But we need more research — another study found that prices seemed cheaper at the bottom (Barone, Coulter, & Li, 2020).