The change in the stockholders' equity during the given year was $111,000. Working out the math, if you take the $132,500 reported investor equity at the beginning of the year and add the $115,000 in total revenues to that, minus the $104,500 in expenses and $39,000 in cash dividends you get $104,000. Take the total calculated assets of $215,000 at the the end of the year, subtract the difference between $215,000 and $104,000 and the answer is $111,000.