Gabbe Industries is a division of a major corporation. Last year the division had total sales of $$23,805,500,$ net operating income of $$2,499,578,$ and average operating assets of $$5,065,000.$ The company's minimum required rate of return is $13\%.$

Required:

a$.$ What is the division's margin? $($Round your percentage answer to $2$ decimal places.$)$

b$.$ What is the division's turnover? $($Round your answer to $2$ decimal places.$)$

c$.$ What is the division's return on investment $($ROI$)?($Round percentage your answer to $2$ decimal places.$)$