Margin, Turnover, Return on Investment Pelak Company had sales of $25,000,000, expenses of $17,500,000, and average operating assets of $10,000,000. Required: 1. Compute the operating income. 2. Compute the margin (as a percent) and turnover ratio. If required, round your answers to one decimal place. Margin Turnover % 3. Compute the ROI as a percent. %