#13) Refer to Problem 12. The pay will be $8 per hour for employees. Charles Lackey can also improve the yield by purchasing a new blender. The new blender will mean an increase in his investment. This added investment has a cost of $100 per month, but he will achieve the same output (an increase to 1,875) as the change in labor-hours. Which is the better decision I" a) Show the productivity change, in loaves per dollar, with an increase in labor cost (from 640 to 800 hours}. (640*3) = 5120 (800*3) = 6400 1500/5120 =.29upd 1875/6400 = .29upd = 0 percent change