How to get an accurate declared value on trading cards
I have a set of Pokemon Trading Cards in a very good state. I'd like to get them graded, but I don't know how to get an accurate declared value.
The PSA website states that to get a grading on cards using any of the service levels, any given card must have a declared value of $500 or less. How can I know how much my cards are worth so I can choose the correct service level?
Thanks in advance