Perform a Horizontal Analysis of the Following Company's Income Statement

Perform a horizontal analysis of the following company's income statement. Include both the amount and the percentage of change for each account.
$$\begin{array} { | l | r | r | r | l | } \hline \text { Account } & \mathbf { 2 0 1 1 } & \mathbf { 2 0 1 0 } & \text { Change Amount } & \text { Change Percent } \\\hline \text { Net sales revenue } & \$ 557,000 & \$ 500,000 & & \\\hline \text { Cost of goods sold } & 400,000 & 395,000 & \\\hline \text { Gross profit } & 157,000 & 105,000 & & \\\hline \text { Selling and general expenses } & 70,000 & 50,000 & \\\hline \text { Net income before income tax } & 87,000 & 55,000 & \\\hline \text { Income tax expense } & 24,000 & 16,500 & \\\hline \text { Net income } & \$ 63,000 & \$ 38,500 & & \\\hline\end{array}$$