B. Common-Size Income Statement (10 points) A comparative income statement is given below for Rainbow Company: Rainbow Company Comparative Income Statement For the Years Ended June 30, 2019, and 2018 Sales Less cost of goods sold Gross margin Selling expenses Administrative expenses Total expenses Net operating income Interest expense Net income before taxes 5,000,000 3.160,000 1.840,000 900,000 680,000 1,580,000 260,000 70,000 190,000 4,000,000 2,400,000 1,600,000 700,000 584,000 1,284,000 316,000 40,000 276,000 19 AE19 - Financial Management School of Business, Second Semester, SY 2020-2021 Adaptive Community for the Continuity of Education and Student Services National Teachers College Required: 1. Express each year's income statement in common-size percentages. Carry computations to one decimal place. 2. Comment briefly on the changes between two years