Menu prices in Europe already include VAT don't they? And aren't tips lower percent too? Often in the US sales tax on restaurants is near 10% and a 20% tip is added to the bill for groups. Then the iced tea wasn't on the menu and costs twice what you expected. Very quickly you have to put in $20 to cover a $10 item. If US menus listed the price after tax and tip, I suspect Bistromathics would work okay here too, at least for groups that dine together often. But of course, the sticker shock would be a problem.