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According to the producer price index database maintained by the Bureau of Labor Statistics, the average cost of computer equipment fell 3.8 percent between January and December 2016. 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 Computer Tycoon Inc. for the year ended December 31, 2016. 2-a. Conduct a vertical analysis by expressing each line as a percentage of total revenues. 2-b. Excluding income tax, interest, and operating expenses, did Computer Tycoon earn more profit per dollar of sales in 2016 compared to 2015? Complete this question by entering your answers in the tabs below. 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 Computer Tycoon Inc. for the year ended December 31, 2016. (Decreases should be indicated by a minus sign. Round percentege values to 1 decimal place.)