regularly the waiters and waitress's hour pay is no more than $3. So they live on tips.
Those who work in Chinese restaurant earn a lot less than those who work in American restaurants because Chinese customers are generally a lot more stingy in paying tips. Some vary from 5% to 15%.
Above 15% is very rare. But in American customers 20% or above 20% is not that rare.
You do not need to tip at Staubucks and fastfood restaurants like MaCdonalds.
I think 15%-18% is fine for any restaurants with table service. Never use bad service excuse to refuse tip, because the dishes and meals are not flying on your tables by themselives, and there are some service persons need clear your table after you leave.
Never not tip use any excuses!!! Never tip with very little percentage like 1-2%, it worse than nothing!
Those who work in Chinese restaurant earn a lot less than those who work in American restaurants because Chinese customers are generally a lot more stingy in paying tips. Some vary from 5% to 15%.
Above 15% is very rare. But in American customers 20% or above 20% is not that rare.