Compute trend percentages for the following items taken from the financial statements of Lopez Plumbing over a five-year period. Treat 2007 as the base year. State whether the trends are favor- able or unfavorable. (Dollar amounts are stated in thousands.) es 2011 2010 2009 2008 2007 $81,400 $74,000 $61,500 $59,000 $50,000 .. 58,500 48,000 40,500 37,000 30,000 0