The average price of a gallion of gas in 2018 increased $0.30(12.4 percent) from $2.42 in 2017 to $2.72 in 2018 . Required: 1. Conduct a horizontal analysis by calculating the year-over-year changes in each line liem, expressed in dollars and in percentages for the income statement of Fawkes Manufacturing for the yeor ended December 31, 2018 (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 Fawkes eam more gross profit per dollar of revenue in 2018 compared to 2017? Complete this question by entering your answers in the tabs below. Conduct a horizontal analysis by calculating the year-over-yeor changes in each line ltem, expressed in dollars and in percentages for the income statement of Fawkes Manufacturing for the year ended Docember 31, 2018 (amounts in biltsonsif (Decreases should be indicated by a minus sign. Enter your answers in billions (i.e, 10,000,000,000 should be entereo as 10). Round percentage values to 1 decimal place.) Complete thit question by entering your answers in the tabs below. Conduct a vertical analysis by expressing each line as a percentage of total revenues. (Round percentage values to 1 decimal place.) Complete this question by entering your answers in the tabs below. Excluding income tax and other operating costs, did Fawkes earn more gross profit per dollar of revenue in 2018 compared to 2017