AA Appliances manufactures three machines, washers, dryers, and dish washers. Data on the Washers Dryers Dish Washers Price $830.00 $620.00 $410.00 Direct Materials $415.00 $310.00 $205.00 Direct Labor $200.00 $80.00 $60.00 Variable Manufacturing Overhead $80.00 $90.00 $70.00 It is calculated that manufacturing overhead is allocated to the three products using a rate of 160 extra machine hours to allocate to produce another product. Do not enter dollar signs or commas in the input boxes. Round all answers to 2 decimal places. a) Calculate the machine hours used per item. Variable Manufacturing Overhead Overhead rate Machine hours used per item Washers Dryers b) Calculate each item's relevant contribution margin per machine hour. Washers Dryers Search Dish Washers Dish Washers