Although everybody has a calculator with them in their cell phone these days, but at least for now most would not know how to get to it. I did find in Australia, where the price shown on the menu is the price you will pay, with tipping uncommon and tax included, that there was indeed sticker shock, especially combined with the cheaper dollars. An item that is $10 in the USA might say $20 in Australia. And while you know it's the same, if you go by a restaurant and the menu shows all the main dishes are $40 it's hard to break the programming that says "this is a fancy restaurant, only go in if seeking such."