What is the reason behind keeping the price of products ending with 999, 99, 9? in kannada

What is the reason behind keeping the price of products ending with 999, 99, 9?
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What is the reason behind keeping the price of products ending with 999, 99, 9? in kannada
631 Likes	631 Dislikes
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Science & Technology	Upload TimePublished on 18 Sep 2018