Low Carb Diet Supplement Inc. has two divisions. Division A has a profit of $150,000 on sales of $2,780,000. Division B is able to make only $28,400 on sales of $307,000. a. Compute the profit margins (return on sales) for each division. (Input your answers as a percent rounded to 2 decimal places.) b. Based on the profit margins (returns on sales), which division is superior