it's a weird cultural thing, i'm not sure when it started. No, you're not required to tip at all but it's frowned upon to not tip. How much to tip is another ar

it's a weird cultural thing, i'm not sure when it started. No, you're not required to tip at all but it's frowned upon to not tip. How much to tip is another art form itself. Many people gauge how much to tip based on quality of service and others tip a flat rate. My tip algo is: 1. get the check 2. shift the decimal point to the left by one digit ( 10% ) 3. double the amount from step 2 ( 20% ) 4. round down to the nearest whole number ( makes it easier to add ) 5. sum, write, sign and leave