Refer to the annual report of SAR Company for analyzing operating activities as required below: SAR Company Consolidated Statements of Income For the years ended December 31 Additional information 202020212022 Research development 520490500 Advertising 1,4801,5401,260 Required: a. Compute all of the expense categories as a percentage of sales for each of the three years shown (Round to the nearest one-tenth of a percent). Analyze and comment on the percentages computed b. What provision for taxes as a percent of earnings before income taxes for each year? Answer: b. Provision for taxes as a percent of earnings before income taxes: FY 2020=% FY 2021=% FY 2022=% Best wishes