Exercise 14.2 Trend Percentages (LO14-1) 2015 2014 2013 2012 2011 Sales $ 81,000 $ 67,000 $ 63,000 $ 57,000 $ 50,000 Cost of goods sold 64,800 59,400 33,900 45,600 30,000 a. Compute trend percentages for the above items taken from the financial statements of Lopez Plumbing over a five-year period. Treat 2011 as the base year. b. State whether the trends are favorable or unfavorable.