statement Interest expense $ 12 400 000 Profit before tax Profit after tax 24000 000 18000 000 Balance sheet Total assets 326000 000 Preference shares, 100000 shares issued (annual dividend $2) 2 500 000 Ordinary shareholders' equity 180 000 000 Retained earnings 4000 000 Total shareholders' equity 186 500 000 E14-12 Evaluating profitability [10-15 min] Lofty Exploration Ltd reported these figures for 2015: Requirements 1 Calculate rate of return on total assets and rate of return on ordinary shareholders' equity for 2015. 2 How can you judge whether these are good rates of return or not