A comparative income statement is given below for McKenzie Sales, Ltd., of Toronto: Members of the company's board of directors are surprised to see that net income increased by only $179,700 when sales increased by $1,759,200. Required: 1. Express each year's income statement in common-size percentages. (Round your percentage answers to 1 decimal place (i.e., 0.1234 should be entered as 12.3).) \begin{tabular}{|l|c||c|c|c|} \hline & \multicolumn{2}{c|}{ This Year } & \multicolumn{2}{c|}{ Last Year } \\ \hline Sales & & % & % \\ \hline Cost of goods sold & & % & % \\ \hline Gross margin & & % & & % \\ \hline Selling and administrative expenses: & & & & \\ \hline \multicolumn{1}{|l|}{ Selling expenses } & % & & % \\ \hline Administrative expenses & % & % & & % \\ \hline Total selling and administrative expenses & & % & & % \\ \hline Net operating income & & % & & % \\ \hline Interest expense & & % & & % \\ \hline Net income before taxes & & % & & % \\ \hline \end{tabular}