Common-size statement analysis A common-size income statement for Creek Enterprises' 2018 operations follows .Using the firm's 2019 income statement , develop the 2019 common-size income statement and compare it to the 2018statement. Which areas require further analysis and investigation? Creek Enterprises Income Statement for the Year Ended December 31, 2018 Creek Enterprises Income Statement for the Year Ended December 31, 2019 \begin{tabular}{lrr} \hline Sales revenue & $30,000,000 \\ Less: Cost of goods sold & 21,049,000 \\ Gross profits & & $8,951,000 \\ Less: Operating expenses & $2,991,000 & \\ Selling expense & 1,802,000 & \\ General and administrative expenses & 202,000 & \\ Lease expense & 985,000 & \\ Depreciation expense & & 5,980,000 \\ Total operating expense & $2,971,000 \\ Operating profits & 951,000 \\ \cline { 3 } Less: Interest expense & $2,020,000 \\ Net profits before taxes & 808,000 \\ Less: Taxes (rate =40%) & $1,212,000 \\ Net profits after taxes & 139,000 \\ Less: Preferred stock dividends & & $1,073,000 \\ \hline \end{tabular} Creek Enterprises Common-Size Income Statement for the Years Ended December 31, 2018 and December 2019