If I got a bill from someone and was charged for 18 unexplained minutes, I would have some questions. I think your charges will appear inconsistent if done in this manner. A better way to compensate for experience and training value is simply to have an appropriate billing rate. An appropriate billing rate will fairly compensate you for your expertise, experience and training and your invoices will be consistent and easily understood/explained. Terry Farrell ----- Original Message ----- Here's another one of those fixes that you learn at great cost. So how do you charge for the next one? Now that you know to look there the next one will only take you 10 minutes instead of 90. But you can't just charge for the 10 minutes. You should recoup your initial investment of time. You'll probably only run across 5 of these in your entire career (I've only seen one maybe two in 25 years). So that is 90/5=18, 18 minutes have to be added on to the 10 minutes it takes you the next 5 times to recover your investment of time in learning this fix. In other words, to be profitable in the long term, you must charge for 28 minutes the next 5 times you do this repair instead of the actual 10 that it takes you. Dean May -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070817/52cc26e3/attachment.html
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