Bramble, Inc., reported the following results for last year. Net operating income Sales revenue Average operating assets Liles Division Marston Division Outland Division $116,000 $54,700 $337,000 600,000 150,000 1,200,000 1,042,000 300,000 1,520,000 (a) Calculate margin for each division. (Round answers to 1 decimal place, e.g. 5.1%) Margin Liles % Marston Outland Which division generates the highest margin? (b) Calculate ROI for each division. (Round answers to 1 decimal place, e.g. 5.1%) Return on Investment Liles Marston Outland If the divisions are evaluated based on return on investment, which division is doing the best job