Suppose the wholesale price of a certain brand of medium-sized eggs p (in dollars/carton) is related to the weekly supply x (in thousands of cartons) by the equation 729p - x = 100. If 27,000 cartons of eggs are available at the beginning of a certain week and the supply is falling at the rate of 1,000 cartons/week, at what rate is the wholesale price changing? Round the answer to the nearest tenth. (Hint: To find the value of p when x = 27, solve the supply equation for p when x = = 27). Round the answer to the nearest tenth, if necessary.