White Tiger Electronics produces CD players using an automated assembly line process. The standard cost of CD players is $145 per unit (labor, $32; materials, \$66; and overhead, \$47). The sales price is $275 per unit. a. To achieve a 13 percent multifactor productivity improvement by reducing materials costs only, one needs to reduce the materials cost by percent. (Enter your response as a percent rounded to two decimal places.) b. To achieve a 13 percent multifactor productivity improvement by reducing labor costs only, one needs to reduce the labor cost by percent. (Enter your response as a percent rounded to two decimal places.) c. To achieve a 13 percent multifactor productivity improvement by reducing overhead costs only, one needs to reduce the overhead cost by percent. (Enter your response as a percent rounded to two decimal places.)