Question 8 A business with four product lines, 1, 2, 3 and 4, has operating expenses of 450,000 and revenue of 2.8m. The amount of revenue generated by each product is detailed in the pie chart below and its respective gross profit margins are detailed in the bar chart. Using the data in both charts, calculate the overall gross profit margin for the firm and the operating profit margin. 45% 40% 15% 33% 35% 20% Gross profit margin 30% 32% 25% Product 4 Product 1 Product 2 Product 3 % of revenue generated per product 20% Product 1 Product 2 Product 3 Product 4