Licensure Amalgamation Inc has the following data 2020201920182017 Net sales$83,000$75,000$67,000$60,000 Cost of goods sold 34,00032,00030,00026,000 Gross margin$49,000$43,000$37,000$34,000 Operating expenses 26,0002200019 00014,000 Net income$23 000$21,000$18,000$20,000 Required a. Prepare an analysis showing the trend percentages for the four-year period using 2017 year b. What do the trend percentages indicate regarding Licensure's income statement data