The following items were taken from the financial statements of Marin, Inc., over a three-year period: Item 2020 2019 2018 Net Sales $365,000 $350,000 $310,000 Cost of Goods Sold 214,500 204,000 184,500 Gross Profit $150,500 $146,000 $125,500 (a) Compute the amount and percentage change from 2018 to 2019. (Round percentages to 1 decimal place, e.g. 17.5%.) Item Amount Percentage Net Sales % Cost of Goods Sold % Gross Profit $ %