Net sales revenue, net income, and common stockholders' equity for Nancy Optical Corporation, a manufacturer of contact lenses, follow for a four-year period. 2017 2016 2015 2014 (in thousands) Net sales revenue Net income $ 732 $ 522 $ $ 7,224 $ 6,837 $ 6,192 $ 6,450 426 $ 600 Requirements 1. Compute trend percentages for each item for 2014 through 2017. Use 2014 as the base year. 2. Compute the rate of return on common stockholders' equity for 2015 through 2017. Ending common stockholders' equity $ 5,575 $ 4,025 $ 3,975 $ 3,125 Requirement 1. Compute trend percentages for each item for 2014 through 2017. Use 2014 as the base year. (Round the percentages to two decimal places, X.XX%.) Nancy Optical Corporation - Trend Percentages Net sales revenue Net income Common stockholders' equity 2017 2016 2015 2014 % % % % % % % % % % % % Requirement 2. Compute the rate of return on common stockholders' equity for 2015 through 2017. First identify the formula, then calculate the rate of return on common stockholders' equity for each year. (Round the percentages to two decimal places, X.XX%. For accounts with a zero balance enter $0 where appropriate.) 2015 2016 2017 = = Return on equity % % %