Return on Total assets

THERMITREX (PTY) LTD STATEMENT OF FINANCIAL POSITION AS AT 31 DECEMBER 2021 \begin{tabular}{|l|r|} \hline ASSETS & \\ \hline Property, plant and equipment (PPE) at cost price & 1350000 \\ \hline Accumulated depreciation & (300000) \\ \hline PPE at carrying value & 1050000 \\ \hline Investment in shares & 825000 \\ \hline Non-current assets & 1875000 \\ \hline & 150000 \\ \hline Inventories & 250000 \\ \hline Trade and other receivables & 725000 \\ \hline Cash and cash equivalents & 1125000 \\ \hline Current assets & \\ \hline & \\ \hline Total assets & \\ \hline & \\ \hline EQUITY AND LIABILITIES & \\ \hline \end{tabular} EQUITY AND LIABIUTIES Total equity and liabilities 3000000 STATEMENT OF COMPREHENSIVE INCOME FOR THE YEAR ENDED 31 DECEMBER 2021 \begin{tabular}{|l|r|} \hline & \\ \hline Revenue & 2450000 \\ \hline Cost of sales and services rendered & (1450000) \\ \hline Gross profit & 1000000 \\ \hline Operating expenses & (250000) \\ \hline Operating profit & 750000 \\ \hline Investment income & 80000 \\ \hline Finance cost & (65000) \\ \hline Profit before tax & 765000 \\ \hline Income tax expense & (306000) \\ \hline Profit after tax & 459000 \\ \hline Preference share dividends & (15750) \\ \hline Attributable earnings & 443250 \\ \hline Ordinary dividends & (150000) \\ \hline Retained earnings (for the year) & 293250 \\ \hline \end{tabular}