I'm sorry, my explanation was insufficient. If I don't go through eBay, I can sell it for $OO, but if I list it on eBay, I will add $50 and sell it for $OO.
I am so sorry. That was a lack of explanation. I can sell it at 〇〇 dollars if not via eBay. But if I will list to eBay, I will sell it at 〇〇 dollars adding 50 dollars.