13-1 Preparing and Interpreting a Schedule for Horizontal and Vertical Analyses (LO 13-2, LO 13-3, LO 13-5] The average price of a gallon of gas in 2015 dropped $0.94 (28 percent) from $3.34 in 2014 (to $240 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-. 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 Regina Reg2A Rea2B Conduct a horizontal analysis by calculating the year-over-year change 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) (Decreases should be indicated by a minus sign. Enter your answers ons ( 10,000,000,000 should be entered as 10). Round percentage values to 1 decimal place. m RRORAT