What is the ruling on selling a single commodity at different prices to different customers by agreement, and what is the ruling on the money earned from this sale?

It is permissible to sell at any price agreed upon by the contracting parties, whether it is the value of the commodity, less, or more, unless there is fraud or deception, as Allah Almighty says: "O you who have believed, do not consume one another's wealth unjustly but only [in lawful] trade by mutual consent." There is no specific profit margin; rather, the matter is left to the circumstances of the trade, while observing Islamic ethics. The transaction must be free from fraud, deception, misrepresentation, and monopolization.