Is a used-car dealer's offering a meager price that is less than half the car's value, knowing that he will later sell it for huge profits, considered an act of "depriving people of their rightful due"?

Allah Almighty says: "And do not deprive people of their due" (Quran 7:85). Depriving is to diminish the value of a commodity by finding fault with it or by deceiving about its true worth, which is a form of consuming wealth unjustly. Therefore, for a merchant to say that a car is worth half its real price is a forbidden act of deprivation. The merchant should emulate the example of Jarir ibn Abdullah, who pledged allegiance to the Prophet, peace be upon him, to offer sincere advice to every Muslim. Jarir increased the price of a horse he bought until it reached eight hundred dirhams instead of three hundred. If merchants do not advise the seller, then at the very least, they should not deceive or lie to them, otherwise, their wealth will be afflicted with ruin.