A good pricing strategy is difficult and it depends on what your doing/selling. You need to be reasonable with your prices or no one will buy them so you need to be extra careful when it come to pricing. For example DO NOT sell a tiny little sticker that’s barely the size of your hand for $10. That just would not be reasonable and no one will want to buy it so instead you should put the price at 1-3 dollars depending on the size and quality of the sticker.