Common-size and trend percents for Rustynail Company's sales, cost of goods sold, and expenses follow. Common-Size Percents Trend Percents 2015 2014 2013 2015 2014 2013 Sales 100.0% 100.0% 100.0% 103.8% 102.6% 100.0% Cost of goods 63.5 61.3 56.3 117.1 111.7 100.0 sold Total 14.2 13.7 14.0 105.3 100.4 100.0 expenses Determine the net income for the following years. (Enter all amounts as positive values. Round your answers to nearest whole dollar.) 2015 2014 Sales Cost of Goods Sold Total Expenses Net Income 2013 $ 100,000 56,300 14,000 $ 29,700 Did the net income increase, decrease, or remain unchanged in this three- year period? Net income increased Net income decreased Remained unchanged