E13-4 Computing Profitability Ratios [LO 13-4, LO 13-5] According to the producer price index database maintained by the Bureau of Labor Statistics, the average cost of computer equipment fell 4.8 percent between 2012 and 2013. Let's see whether these changes are reflected in the income statement of Computer Tycoon Inc. for the year ended December 31, 2013. 2013 2012 $109,000 $133,500 Sales Revenue Cost of Goods Sold 64,500 75,100 Gross Profit 44,500 58,400 Selling, General, and Administrative Expenses 36,900 38,800 590 520 Interest Expense Income before Income Tax Expense 7,010 19,080 1,500 5,900 Income Tax Expense 5,510 13,180 Net Income Required: 1-a. Compute the gross profit percentage for each year. (Round your answers to 1 decimal place Gross Profit Percentage 2012 2013