2. sales 10.00 points The average price of a gallon of gas in 2013 dropped $0.12 (3 percent) from $3.61 in 2012 (to $3.49 in 2013). Let's see whether these changes are reflected in the income statement of Chevron Corporation for the year ended December 31, 2013 (amounts in billions). 2013 2012 Total Revenues Other Operating Costs Income Tax Expense $280 $297 Costs of Crude 0i1 and Products 118 123 53 Income before Income Tax Expense 103121 26 $ 83 95 59 20 Net Income Required 1-a. Compute the gross profit percentage for each year. Round your answers to.I decimal place.) , (Ctrl) 3 100% 1