Selling an Instrument
Take it to the repair shop and ask what it would cost to have it restored to new condition.
It is up to you to decide if you want the repairs done.
Ask what a replacement instrument would cost new.
Subtract the cost of repair from the new price.
Deduct another 10 to 20 percent because the case and any accessories are used and you can’t give a warranty.
You will find that with different brands and different locations in the world that prices vary more than 50%