Revenue and expense data for the current calendar year for Tannenhill Company and for the electronics industry are as follows. Tannenhill's data are expressed in dollars. The electronics industry averages are expressed in percentages. a. Prepare a common-sized income statement comparing the results of operations for Tannenhill Company with the industry average. Tannenhill Company Common-Sized Income Statement For the Year Ended December 31 \begin{tabular}{lrlr} \hline & Tannenhill Company Amount & Tannenhill Company & Electronics Industry Sales \\ Cost of goods sold & $4,000,000 & \end{tabular}