In response to complaints about high prices, a grocery chain runs the following advertising campaign: If you pay your child $1 to go buy $33 worth of groceries, then your child makes about twice as much on the trip as we do. Youve collected the following information from the grocery chains financial statements:

(millions)
Sales	$	754.00
Net income		11.45
Total assets		320.00
Total debt		152.50

What is the childs profit margin? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Childs profit margin % What is the stores profit margin? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Stores profit margin % What is the store's ROE? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) ROE %