Matthew, Just double your cost - if you paid $70.00, your retail is $140.00, etc. You'll get other answers, but this markup, called "keystone", is by far the most prevalent in all trades. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ptg.org/pipermail/pianotech/attachments/20080501/a26b762a/attachment.html