The following items were taken from the financial statements of Horace, Inc., over a three- year period: Item 2019 2018 2017 Net sales 355,000 336,000 300,000 CGS 214,000 206,000 186,000 Gross profit 141,000 130,000 114,000 > Instructions Compute the following for each of the above time periods. a. The amount and percentage change from 2017 to 2018. b. The amount and percentage change from 2018 to 2019.