Use Segment Information to Refine Sales Forecast To forecast sales growth for Best Buy for the fiscal year ended February 2, 2019, we begin with the following historical sales information. 2016 $ millions 2015 2017 2018 2019 Net sales $40,218 $39,528 $39,285 $42,151 $42,750 Required a. Determine the sales-growth rate (in percentage) for each of the years 2016 to 2019. Note: Round the percentage to one decimal place (for example, enter 14.6% for 14.55555%). 2019 2018 2017 2016 in $ millions Sales growth rate % % % % b. If we were to use the 2019 growth to forecast 2020 sales, what rate would we use? Note: Round the percentage to one decimal place (for example, enter 14.6% for 14.55555%). C. The annual report reveals the fiscal year ended February 2018 included a 53rd week (as is common for retailers, every four years). Use this information to refine the sales-growth rates for 2018 and 2019. Hint: Consider multiplying sales for a 53-week year by 52/53 to get an apples-to-apples comparison with numbers from 52-week years. Note: Round the percentage to one decimal place (for example, enter 14.6% for 14.55555%). 2019 2018 2017 2016 in $ millions Sales growth rate % % % %