CD players are produced on an automated assembly line process

CD players are produced on an automated assembly line process. The standard cost of CD players is $150 per unit (labor, $30; materials, $70; and overhead, $50). The sales price is $300 per unit.To achieve a 10 percent multifactor productivity improvement by reducing materials costs only by what percentage must these costs be reduced?To achieve a 10 percent multifactor productivity improvement by reducing labor costs only, by what percentage must costs be reduced?To achieve a 10 percent multifactor productivity improvement by reducing overhead costs only by what percentage must these costs be reduced?