RTP-area local music and culture

[John I <not AT hotmail.com>]

John Shadle wrote:

> John I <not AT hotmail.com> wrote...
>> 
>> It's easy.  You subtract the sales tax and any appetizers then figure
>> 25% of what's left.  over time it works out to 17%.
> 
> i've always heard that you tip on the pre-tax amount. am i right, or am 
> i right? that 10% of the meal plus the sales tax makes sense to me 
> (thanks to bendy).
> 

You could also calculate it by adding half of 15% to ten percent then round.