Back in the late sixties, I dated a Safeway cashier. She would call out the price of every item as she rang it up, with nothing to go on but memory. Maybe they all did that. It was amazing.
In those years, I also was a grocery cashier. The cans & other non-r=produce items were all marked with a stamped price on it. We were required to call it out because most shoppers never even LOOKED at the marked prices when they grabbed something for the cart.
Produce was a case of being there before your shift started & using a pre-printed form & walking thru the produce department and writing down the prices. I can remember that I hated plum season. There were about 59 different kinds of plums, and it was hard to tell them apart. Never could get the produce manager to just price them all the same.
Now-—ALL produce has a sticker on it. -—AND-—the bar code is read by the scanner & you don’t call out anything.