Sorry it took me a few days to get back to this. Amazon tacks on 3.99 to your asking price which is listed as the “shipping” cost and depending on the price of your item, they keep about that much for their fee unless it is a really cheap item or a really expensive item and then it will be a bit less or a bit more respectively.
For instance, I just listed an item for 39.99. Then Amazon added 3.99 for shipping, making the total cost 43.98. If it sells I will recieve 35.00, and I will spend about 2.50 to send it. Another item I sold the other day sold to the customer for 11.00, Amazon got about 3.50 and I will receive about 7.50. So yes, Amazon gets their share to be sure but things sell fast there usually, their search engine is excellent so people can find your weird, obscure homeschool curricula fairly easily, and the whole process is very user friendly. I will admit this in this fairly anonymous and wonderfully gracious place; last year I did a major homeschool stuff purge and I made about 400.00! It took all summer and many trips to the post office but I got rid of a ton of stuff that had been bogging me down, stuff I never probably should have had in the first place. I am TRYING not to make the same mistakes again where I end up with so much that I don’t need/can’t use/isn’t a good fit for our family.
HTH!
Michelle