What is the ruling on selling pork in a restaurant owned by a Muslim in America, knowing that its sales do not exceed 15% of total sales?

It is forbidden for a Muslim to sell what Allah has prohibited, such as pork. Whoever does so must repent by ceasing the act, regretting it, and resolving never to return to it. The money earned from this forbidden sale must be disposed of by spending it on the interests of Muslims, such as the poor and the needy. The young man in question must dispose of the profits he gained from selling prohibited items, and if he does not know the exact amount, he must dispose of what he most likely estimates it to be, based on the Almighty's saying: "So fear Allah as much as you are able."