data for mariner designs inc follow mariner designs inc comparative income statement 667307

Data for Mariner Designs, Inc., follow:

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