Assume the average price of a litre of gas in 2017 jumped $0.17 (16 percent) from $1.04 in 2016 to $1.21 in 2017. Let's see whether this change is reflected in the income statement of Suncor Energy Inc. for the year ended December 31, 2017 (amounts in billions). Total Revenues Costs of Crude Oil and Products Other Operating Costs Income Before Income Tax Expense Income Tax Expense Net Income 2017 $ 273 2016 $ 221 171 133 59 56 43 32 19 13 $ 24 $ 19 Required: 1-a. Conduct a horizontal analysis by calculating the year-over-year changes in each line item, expressed in dollars and in percentages. (Enter amounts in billions of dollars. Round your percentages to 1 decimal place.) SUNCOR ENERGY INC. Income Statements Total revenues Costs of crude oil and products Other operating costs Income before income tax Income tax expense Change in Dollars Percentage % 10 % % % % Required: -a. Conduct a horizontal analysis by calculating the year-over-year changes in each line item, expressed in dollars and in percentages. Enter amounts in billions of dollars. Round your percentages to 1 decimal place.) SUNCOR ENERGY INC. Income Statements Total revenues Costs of crude oil and products Other operating costs Income before income tax Income tax expense Net income Change in Dollars Percentage % 100 % 100 % % % % 2-a. Conduct a vertical analysis by expressing each line as a percentage of total revenues. (Round your answers to 1 decimal places.) SUNCOR ENERGY INC. Income Statements Change in 2017 2016 Total revenues Costs of crude oil and products % % % % Other operating costs % 000 % Income before income tax % Income tax expense Net income % % % % % 2-b. Excluding income tax and other operating costs, did Suncor earn more profit per dollar of revenue in 2017 compared to 2016? Yes No