20% is standard these days, and I usually round up, as I've spent enough time in tipped occupations to understand how they work. Really, if you're in the US and you're going to a full service restaurant, you need to understand that the cost of the service is not included in the menu price, and realize that if you can't afford to tip, you can't afford to eat out, and choosing not to tip is virtually theft. It works out the same either way, you pay $50 for a steak dinner and tip the waiter $10, or the restaurant pays the waiters a higher hourly and the steak costs $60, the tip system is just a bit more flexible as the waiter isn't paid as much during idle times, and the restaurant is a little more free to staff fully knowing that they're not on the hook for a huge labor cost if it's a slower night.
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Your boos mean nothing, I've seen what makes you cheer.
- Rick Sanchez