The average price of a gallon of gas in 2010 jumped $0.43 (18 percent) from $2.36 in 2009 (to $2.79 in 2010). Let’s see whether these changes are reflected in the income statement of Chevron Corporation for the year ended December 31, 2010 (amounts in billions).

Required:
1. Conduct a horizontal analysis by calculating the year-over-year changes in each line item, expressed in dollars and in percentages (rounded to one decimal place). How did the change in gas prices compare to the changes in Chevron’s total revenues and costs of crude oil and products?
2. Conduct a vertical analysis by expressing each line as a percentage of total revenues (round to one decimal place). Excluding income tax and other operating costs, did Chevron earn more profit per dollar of revenue in 2010 compared to2009?

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2010 2009 Total Revenues Costs of Crude Oil and Products Other Operating Costs Income before Income Tax Expense Income Tax Expense Net Income $205 116 57 32 13 $ 19 $172 100 53 19 $11