Study the extract from the statement of comprehensive income of Fairway Traders for the 2018 and 2019 financial years and answer the questions that follow: Sales Gross profit Expenses Net profit 2018 (R) 800 000 400 000 200 000 200 000 2019 (R) 950 000 450 000 220 000 230 000 Required: Q.1.1.1 What is the percentage increase in sales in 2019? Q.1.1.2 Calculate the gross margin for 2019. Round off to two decimals. Q.1.1.3 Assuming that the gross profit margin for 2018 was correctly calculated as 50%, interpret your answer from Q.1.1.2 and provide possible reasons for the movement. (3) (2) (5)