A proffessor is making $950$ dollars per month. He$$s struggling to sustain a life according to his standards. That$$s why he$$s thinking about quitting his job and start a business. After making someone prepare a business plan for him for $400$ dollars, he investigated the financial plan inside that business plan and finds out that the initial investment that$$s required by this business is$200$ thousand dollars. The labor and material cost is going to be roughly one third of the selling price. If he assumes that the sales are going to be fixed for $1500$ units per month for the upcoming months. If the selling price per unit is $3\mathrm{.}5$ dollars. Is his decision for quitting and starting a business going to make sense if he makes the evaluation according to the investment horizon of $3$ years?