Deshawn has spent $600 purchasing and repairing an old fishing boat, which he expects to sell for $900 once the repairs are complete. Deshawn discovers that, in addition to the $600 he has already spent, he needs to make an additional repair, which will cost another $400, in order to make the boat worth $900 to potential buyers. He can sell the boat as it is now for $400. What should he do