E15-13 Data for Mariner Designs, Inc., follow:

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E15-13 Horizontal analysis—income statement [10–15 min]
Data for Mariner Designs, Inc., follow:

MARINER DESIGNS, INC.
Comparative Income Statement
Years Ended December 31, 2012 and 2011

2011 2012
Net sales revenue $ 431,000 $ 372,350
Expenses:
Cost of goods sold $ 200,000 $ 187,550
Selling and general expenses 99,000 91,050
Other expense 8,350 6,850
Total expenses $ 307,350 $ 285,450
Net income $ 123,650 $ 86,900

Requirements

1. Prepare a horizontal analysis of the comparative income statement of Mariner
Designs, Inc. Round percentage changes to one decimal place.

2. Why did 2012 net income increase by a higher percentage than net sales revenue?