please help! trend percents for 2016 as base year

Sales Cost of goods sold Accounts receivable 2020 2019 2018 2017 2016 $ 282,880 $ 270,800 $ 252,600 $ 234,560 $ 150,000 128,200 122,080 115,280 106,440 67,000 18,180 17,300 16,400 15,200 9,080 ^ Compute trend percents for the above accounts, using 2016 as the base year. Choose Numerator: Trend Percent for Net Sales: I Choose Denominator: 11 Trend percent 2020: 2019: 2018: 11 0% 0 % 01% 0 % 2017: Choose Numerator: Trend Percent for Cost of Goods Sold: Choose Denominator: Trend percent 2020: 2019: 2018: 01% 0 % 096 CUI. U 10 Choose Numerator: Trend Percent for Cost of Goods Sold: I Choose Denominator: 1 / Trend percent 2020: 2019: 2018: 2017: 7 0 % 0 % 0 % 0 % Choose Numerator: Trend Percent for Accounts Receivables: | Choose Denominator: Trend percent 2020: 2019: 2018: 2017: 0 % 0 % 0% 0 %