The following items were taken from the financial statements of ABC, Inc., over a four-year period: Item 2018 2017 2016 2015 Net Sales 750,000 650,000 600,000 500,000 Cost of Goods Sold 540,000 460,000 420,000 400,000 Gross Profit 210,000 190,000 180,000 100,000 Instructions Using horizontal analysis and 2015 as the base year, compute the trend percentages for net sales, cost of goods sold, and gross profit. Very briefly comment on whether the trends are favorable or unfavorable for each item