Two firms have sales of $0.7 million each. Other financial information is as follows: What are the operating profit margins and the net profit margins for these two firms? Round your answers to two decimal places. Operating profit margins: Firm A: % Firm B: % Net profit margins: Firm A: % Firm B: % What are their returns on assets and on equity? Round your answers to two decimal places. Return on assets: Firm A: % Firm B: % Return on equity: Firm A: % Firm B: %