Common-size and trend percents for Rustynail Company's sales, cost of goods sold, and expenses follow. Sales Cost of goods sold Total expenses Common-Size Percents 2018 2017 2016 100.0% 100.0% 100.0% 63.7 61.5 56.6 14.4 13.9 14.2 Trend Percents 2018 2017 2016 104.9% 103.7% 100.0% 118.1 112.7 100.0 106.5 101.5 100.0 1. Determine the net income for the following years. 2. Did the net income increase, decrease, or remain unchanged in this three-year period? Complete this question by entering your answers in the tabs below. Required 1 Required 2 Did the net income increase, decrease, or remain unchanged in this three-year period? Did the net income increase, decrease, or remain unchanged in this three-year period? ( Required 1 Required 2