(a(i))[2]
Calculate Gross profit margin in 2017.
(a(ii))[2]
Calculate Gross profit margin for 2017.
(a(iii))[4]
Explain why these profitability ratios changed from 2016 to 2017.
(b)[12]
Consider the effects of the following three changes in legal controls on AH. Which change is likely to have the biggest impact on AH? Justify your answer.\n\nHeating engineers are now required to hold health and safety qualifications.\n\nEmployees are now given protection against unfair dismissal.\n\nAn increase in the minimum wage.