The average price of a gallon of gas in 2015 dropped $0.94 (28 percent) from $3.34 in 2014 to $2.40 in 2015). Required: 1. Conduct a horizontal analysis by calculating the year-over-year changes in each line item, expressed in dollars and in percentages for the income statement of Insignia Corporation for the year ended December 31, 2015 (amounts in billions), 2-a. Conduct a vertical analysis by expressing each line as a percentage of total revenues. 2-b. Excluding income tax and other operating costs, did Insignia earn more profit per dollar of revenue in 2015 compared to 2014? Complete this question by entering your answers in the tabs below. Reg 1 Reg 2A Req 28 Conduct a vertical analysis by expressing each line as a percentage of total revenues. (Round percentage values to 1 decimal place.) INSIGNIA CORPORATION Income Statements (amounts in billions) For the Year Ended December 31 2015 Revenues $ 124 100.0 % Cost of Crude Oil and Products 62 50.01% Other Operating costs 67 % Income before Income Tax Expense 5 Income Tax Expense 0 % Net Income $ 5 % $ 2014 203 117 53 33 22 5 51