Kayla is a speculator in the market for a rare French goat cheese known as Crottin de Chavignol. She entered into a futures contract with farmers from the small town of Chavignol, where the cheese is produced. The futures contract specifies that after45 months, Kayla will purchase 6000 Kilograms (Kg) of crottin de Chavignol at $250/Kg. When the specified number of months has passed, the price of Crottin de Chavignol is $280/Kg. What is Kayle's profit per Kilogram? Please denote losses with a negative sign