Munson Performance? Auto, Inc., modifies 475 autos per year. The? manager, Adam? Munson, is interested in obtaining a measure of overall performance. He has asked you to provide him with a multifactor measure of last? year's performance as a benchmark for future comparison. You have assembled the following data. Resource inputs? were: labor,10,500 ?hours; 540 suspension and engine modification? kits; and? energy, 110,000 ?kilowatt-hours. Average labor cost last year was ?$20 per? hour, kits cost ?$1,000 ?each, and energy costs were ?$4 per? kilowatt-hour.