Revenue and Expense data for Rogan Technologies Co. are as follows.
2010 2009
Sales 500000 440000
cost of goods sold 325000 242000
selling expenses 70000 79000
administation expenses 75000 70000
income tax expenses 25000 26400
a. prepare and income statement in comparative form, stating each item for both 2010 and 2009 as a percent of sales. round to one decimal place.
b. comment on the significanct changes disclosed by the comparative income statement.