White Tiger Electronics produces CD players using an automated assembly line process. The standard cost of CD players is $149 per unit (labor, $26; materials, $69 and overhead, $54). The sales price is $300 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.) a. To achieve a 13 percent multifactor productivity improvement by reducing materials costs only, by what percentage must these costs be reduced? b. To achieve a 13 percent multifactor productivity improvement by reducing labor costs only, by what percentage must these costs be reduced? c. To achieve a 13 percent multifactor productivity improvement by reducing overhead costs only, by what percentage must these costs be reduced