1. Calculate trend percentages for each item for 2015 through 2018. Use 2014 as the base year and round to the nearest percent. 2. Calculate the rate of return on net sales for 2016 through 2018, rounding to the nearest one-tenth percent. Explain what this means. 3. Calculate asset turnover for 2016 through 2018. Explain what this means. 4. Use a DuPont Analysis to calculate the rate of return on average total assets (ROA) for 2016 through 2018. 5. How does Amble Shipping's return on net sales for 2018 compare with previous years? How does it compare with that of the industry? In the shipping industry, rates above 9% are considered good, and rates above 11% are outstanding 6. Evaluate the company's ROA for 2018, compared with previous years and against an 18% benchmark for the industry. (In thousands) 2018 2017 2016 2015 2014 Net sales... $ 616 $ 502 $ 356 $ 313 $ 300 Net income 33 35 15 40 33 Total assets. 302 272 250 226 208 ulate asset turnover for 2016 through 2018. Explain what this means. Begin by selecting the asset turnover formula and then enter the amounts to calculate the ratios. (Ent turnover ratios to three decimal places, X.XXX.) Asset turnover 2016 2017 2018