retail at (something)
To sell (some product or item) directly to consumers at a particular price. A noun or pronoun can be used between "retail" and "at" to indicate the item being sold. The computer normally retails at $1,200, but it's currently on sale for $900. What price are you planning to retail your product at?
retail at something
to sell at a retail price of something. This model normally retails at a much higher price. What does a product like this usually retail at?