Revenue and Expense Data for Young Technologies Are as Follows

Revenue and expense data for Young Technologies are as follows:
$\begin{array}{|l|r|r|}\hline & \text { Year 2 } & \text { Year 1 } \\\hline \text { Sales } & \$ 500,000 & \$ 440,000 \\\hline \text { Cost of goods sold } & 325,000 & 242,000 \\\hline \text { Selling expense } & 70,000 & 79,200 \\\hline \text { Administrative expenses } & 75,000 & 70,400 \\\hline \text { Income tax expense } & 10,500 & 16,400 \\\hline\end{array}$

a. Prepare an income statement in comparative form,stating each item for both years as an amount and as a percent of sales.Round to the nearest whole percent.
b. Comment on the significant changes disclosed by the comparative income statement.