Common-size and trend percentages for a company's net sales, cost of goods sold, and expenses follow Net sales Cost of goods sold Expenses Common-Size Percentages 2020 2019 2018 100.0% 109.06 100.0% 57.9 54.8 51.6 24.1 21.9 22.4 Trend Percentages 2020 2019 2018 108.1% 106.5% 100.0% 115.9 112.0 100. 111.9 104.8 100.0 Required: a. Calculate the profit percentage for 2018, 2019 and 2020. (Round the final answers to 2 decimal places.) 2018 2019 2020 Profit Percentage % % % Western Windows constructs and installs windows for new homes. The sales staff are having a meeting and reviewing the following information to determine how to help reduce days' sales uncollected Accounts receivable Net sales 2015 $ 583,250 $ 440,250 $375,000 6,917.000 6,037,000 5,325,000 Required: a. Calculate the days' sales uncollected for 2018 to 2020 and identify whether the trend is favourable or unfavourable (Round the final answer to 2 decimal places. Do not round intermediate calculation. Use 365 days a year.) 2017 2016 days 2015 days Days' sales uncollected days The following information is available from the financial statements of Landscape Enhancements Inc Total assets, December 31 Profit 2020 2019 2018 $342,000 $554,200 $1,296,000 50,830 78,320 110,500 a. Calculate Landscape Enhancements' return on total assets for 2019 and 2020. (Round the final answers to 1 decimal place.) 2019 2020 Return on total assets % %