.pdf - Adobe Acrobat Reader DC Window Help ols Assignment#02.pdf * Lecture 4.pdf 2 73 116% (a) Consider the following financial data (in millions of dollars) for Costello Laboratories over the period of 2014-2018: Year Sales Net income Total assets 2014 2015 2016 2017 2018 $3,800 4,400 5.000 5.400 6.200 $500 650 750 860 1.000 $3.900 4.400 4.800 4.900 5.600 Common equity $1,800 2,100 2,500 2.700 2.800 Using the Du Pont System, describe the changes in the return on equity from year to year. (10 marks)