Because of its age, your car costs $7,000 annually in maintenance expense. You could replace it with a newer vehicle costing $7,900 that would be expected to have a life of 6 years. If your opportunity cost of capital is 7%, by how much must maintenance expense decrease on the new vehicle to justify its purchase? $ Number (please round your final result to 2 decimals, but keep as many decimals as possible during calculation)