Gabbe Industries is a division of a major corporation. Last year the division had total sales of $30,506,550, net operating income of $4,484,463, and average operating assets of $7,013,000. The company's minimum required rate of return is 19% Required: a. What is the division's margin? (Round your percentage answer to 2 decimal pleces.) b. What is the division's turnover? (Round your answer to 2 decimal pleces.) c. What is the division's return on investment (ROl)? (Round percentoge your answer to 2 decimal places.)