sell at something
[for something] to be marketed at a particular price. This coat formerly sold at twice this price. Next month, this will sell at a 60 percent markup.
sell something at something
1. to market something at a particular price. Do you think we can sell these things at four dollars each? We cannot sell these at ten times what we paid for them!
2. to market something at something or some place. We will try to sell our old kitchen sink at the flea market in Adamsville. He sold all his watermelons at the farmers market in town.