The Grand Ayatollah Khamenei answered a question about the limit of profit which can be earned by the seller.
Question: How much profit is allowed to be earned from selling goods?
The Grand Ayatollah Khamenei: There is no problem to earn profit as long as it does not reach the level of abuse/injustice and it is not against the government’s laws. But it is better; rather it is Mostahab for the seller to be satisfied with the kind of profit that covers his expenses.