If required, round all per unit answers to the nearest cent. a. Determine the plantwide factory overhead rate. i per dlh b. Determine the factory overhead and direct labor cost per unit for each product. Kao Engines Inc. d. What does the report in (c) indicate to you? Pistons have the gross profit as a percent of sales. Pistons may require a price or cost to manufacture in order to achieve a higher profitability similar to the other two products