Pricing for a card show...

So I'm digging through my stuff to find things I want to sell at a card show I'm going to be at in October. I've looked card prices up online, using ebay, but want to make sure I price in a range where people will buy.
What type of pricing rules do you use for selling your cards at shows or online?
Thanks!
What type of pricing rules do you use for selling your cards at shows or online?
Thanks!
0
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<< <i>Where is the show? Wouldn't happen to be at the Vet's Memorial in Columbus would it? >>
Columbus Oct 16/17
Sports Card & Memorabilia Show - Free Admission. There will be over 150 exhibitors buying, selling, and trading sports cards and other memorabilia starting on Saturday 10 a.m. to 5 p.m. and Sunday 10 a.m. to 4 p.m.
MULLINS5,1966CUDA,nam812,nightcrawler,OAKESY25,PowderedH2O,relaxed,RonBurgundy,samsgirl214,shagrotn77,swartz1,slantycouch,Statman,Wabittwax
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<< <i>There will be over 150 exhibitors >>
Wow, if that's true thats a good size show.