Horizontal analysis (trend analysis) percentages for Kirvida Company's sales, cost of goods sold, and expenses are listed here.

Horizontal Analysis 2007 2006 2005 Sales 96.2% 104.8% 100.0%

Cost of goods sold 102.0 97.0 100.0 Expenses 108.6 95.4 100.0 Explain whether Kirvida’s net income increased, decreased, or remained unchanged over the 3-year period.