Question: Compute trend percents for the following accounts, using 2009 as the base year. State whether the situation as revealed by the trends appears to be favorable or unfavorable for each account.
2013 2012 2011 2010 2009
Sales . . . . . . . . . . . . . . . . . . . . . $283,880 $271,800 $253,680 $235,560 $151,000
Cost of goods sold . . . . . . . . 129,200 123,080 116,280 107,440 68,000
Accounts receivable . . . . . . . 19,100 18,300 17,400 16,200 10,000