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Musical Instrument Repairer/Tuner

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AVG. SALARY

$39,830

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EDUCATION

Post-secondary training +

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JOB OUTLOOK

Stable

Real-Life Activities

Real-Life Math

You have just finished doing a repair for a customer. Now it is time to do the invoice.

John Vossos works as a musical instrument repairer. "One of the more useful abilities regarding math is to simply be able to accumulate rates, discounts and various costs that go into calculating the charges in billing for your work," he says.

You advertise that you charge $30 an hour plus the cost of parts. You gave this customer an estimate of $150.

"When doing estimates, one must calculate charges for time, materials, parts, shipping and taxes all on the fly," says Vossos. "Since most service work is based on time plus costs, it is prudent to spend as little time as possible doing things that you don't get paid for -- such as math calculations."

Here's the information you need to write up an invoice:

  • 3 hours of work (labor)
  • The parts cost $57
  • Remember to add 15 percent tax
  • Since your client is a member of your local music group, he gets a 10 percent discount

What will the total amount of the invoice be?