2-a. Compute the net profit margin for each year. (Round percentage values to 1 decimal place.) 2-b. Did Challenger do a better or worse job of controlling operating expenses in 2018 relative to 2017 ? According to the producer price index databsse maintained by the Bureau of Lobor Statistics, the aversge cost of computer equipment fell 3.8 percent between Jonuary and December 2018. Let's see whether these changes are reflected in the income statement of Challenger.com for the year ended December 31, 2018. Requlred: 1. Compute the gross profit percentoge for each yeor. Assuming that the change from 2017 to 2018 is the beginning of o sustoined trend, is Challenger likely to earn more or less gross profit from each dollor of sales in 2019 ? 2 Compute the net profit margin for each yeor. Given your calculations here ond in requirement 1, explain whether Ziggo did o better or worse job of controlling operating expenses in 2018 relative to 2017. 3. Challenger reported overoge net fixed assets of $54,500 in 2018 and $45,400 in 2017 . Compute the fixed osset turnover rotios for both years. Did the company better utilize its investment in fixed assets to generate revenues in 2018 or 2017 ? 4. Challenger reported overoge stockholders' equity of $54,300 in 2018 and $41,100 in 2017 . The compony hos not issued preferred stock. Compute the return on equity ratios for both years. Did the company generate grester returns for stockholders in 2018 than in 2017 ? Complete this question by entering your answers in the tabs below. 1-a. Compute the gross profit percentage for each year. (Round percentage values to 1 decimal place.) 1-b. Assuming that the change from 2017 to 2018 is the beginning of a sustained trend, is Challenger likely to earn more or less gross profit from each dollar of sales in 2019? 3 -a. Challenger reported average net fixed assets of $54,500 in 2018 and $45,400 in 2017 . Compute the fixed asset tumover ratios for both years. (Round your answers to 2 decimal place.) 3-b. Did the company better utilize its investment in fixed assets to generate revenues in 2018 or 2017 ? 4-a. Challenger reported average stockholders' equity of $54,300 in 2018 and $41,100 in 2017 . The company has not issued preferred stock. Compute the return on equity ratios for both years. (Round your answers to 1 decimal place.) 4-b. Did the company generate greater returns for stockholders in 2018 than in 2017