Which ancient civilization first implemented a form of 'psychological pricing' (prices ending in 9 or similar) according to archaeological evidence?

While we often think of modern retail as having sophisticated pricing strategies, ancient civilizations developed remarkably advanced methods for determining the value of goods. From Mesopotamian clay tablets recording fixed prices to Roman market regulations, the foundations of today's pricing models have deep historical roots. Test your knowledge about how ancient merchants valued and priced their products across different empires and trading networks.

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Ancient Rome, where merchants priced items at 99 denarii instead of 100 to make products seem more affordable
Ancient Egypt, where market records show goods priced at 19 debens instead of 20 to attract more buyers
Ancient China, where Han Dynasty traders used prices ending in 8 (considered lucky) to boost sales
Ancient Greece, where agora sellers priced luxury goods at 999 drachmas instead of 1000 to appeal to wealthy citizens