Table 1: Financial data 2013-2017 2013 2014 2015 2016 2017 Revenue 24000 27000 40000 41000 42000 Costs* 4000 4500 5000 5200 5500 Profit 20000 22500 35000 35800 36500 *Includes fixed costs of 800 Question 1 Use the data in Table 1. Calculate, for 2017: a) Gross profit margin [3] b) The percentage increase in revenue since 2013 [2] c) Return on capital employed [3] I