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Test a price that ends in 9, because it can sell more than a lower price

Oct 10
2 min read

Updated: Oct 11

Public-domain art plate: Gould — A Monograph of the Trochilidae, Plate 192 (1849-1861)
Hummingbirds, plate 192 from John Gould's A Monograph of the Trochilidae (1849-1861).

The last digit of a price can change sales.

The study. Two marketing professors from Chicago and MIT worked with a US women's clothing catalog. They printed different versions of the catalog with different prices for the same items.

The finding. Items priced at $39 sold more than the same items at $34 or at $44. The price that ended in 9 won, although it was not the lowest price.

Why it matters. Buyers do not read every digit with the same care. A price that ends in 9 can look like a good deal. This study used real catalogs and real orders, not a survey.

The takeaway. Test prices that end in 9 against round prices and slightly lower prices. Use real orders to decide.

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