please describe each and every point clearly

Q4. Net sales, net income, and total assets for Aaron Shipping, Inc., for a five-year period follow: (in thousands) 2020 2019 2018 2017 2016 Net sales $850 $350 $352 $314 $296 Net income 50 39 46 37 24 Total assets 308 269 252 230 209 Required: Compute trend percentages for each item for 2017 through 2020. Use 2016 as the base year and round to the nearest percent. Compute the return on net sales for 2018 through 2020, rounding to three decimal places. Explain what this means. II Compute asset turnover for 2018 through 2020. Explain what this means. Compute the return on average total assets (ROA) for 2018 through 2020. How does it compare with that of the industry? In the shipping industry, rates above 5% are considered good, and rates above 7% are outstanding. Evaluate Aaron Shipping, Inc.'s ROA for 2020, compared with previous years, and against a 15% benchmark for the industry