this feels apocryphal and appears to be one theory of many[1] (also - just take out an extra penny during the next transaction). to quote cecil adams "trying to

this feels apocryphal and appears to be one theory of many[1] (also - just take out an extra penny during the next transaction). to quote cecil adams "trying to find out who invented [psychological pricing] is like trying to find out who invented the hat."[2] 1 - https://en.wikipedia.org/wiki/Psychological_pricing https://en.wikipedia.org/wiki/Psychological_pricing 2 - https://www.straightdope.com/21341889/why-do-prices-end-in-99 https://www.straightdope.com/21341889/why-do-prices-end-in-9...