The best way to find out the answer to your question is by checking out your competition. eBay can be considered a wholesale marketplace because most wholesalers sell direct to the public on eBay. Hence, to succeed selling on eBay, you have to offer competitive prices to your buyers. And people tend to pay more for products bought outside of eBay.
To help you with pricing your products, on eBay, you can do a completed listing and note the average selling price of a particular product that you are selling. You can also check out how much the other eBay members are selling the same product for.
Outside of eBay, you can use Google to check out other sellers/online stores that carry this product.
For more insights on pricing, you may have a look at this forum post:
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All the best,