a. b. What is the profit margin for the child as a percentage of what they spend and the profit margin for the store? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g.. 32.16.) 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.) a. Child's profit margin a. Store's profit margin b. Store's ROE 2.50% 1.25 % %