White Tiger Electronics produces CD players using an automated assembly line process. The standard cost of CD players is ?$151 per unit? (labor, ?$28?; ?materials, ?$69; and? overhead, ?$54). The sales price is ?$325 per unit.

a. To achieve a 15 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 15 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 15 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.)