Express the following comparative income statements in common-size percents. Using the common-size percentages, which item is most responsible for the decline in net income? Income Statement Reason for Decline in Net Income Express the following comparative income statements in common-size percents. (Round your percentage answers to 1 decimal place.) GOMEZ CORPORATION Comparative Income Statements For Years Ended December 31 Current Year Prior Year % $ % Sales Cost of goods sold $ 740,000 $630,000 560,000 284,400 Gross profit 180,000 345,600 Operating expenses 130,400 240,800 Net income $ 49,600 $ 104,800