Margin is calculated using which of the following formulas? Multiple Choice Sales + Average operating assets O O Net operating income + Sales O O Average operating assets + Sales Sales + Net operating income Which of the following statements is true? Multiple Choice Assuming all else holds constant, if the average accounts receivable decreases, then the margin will increase. Assuming all else holds constant, if the average accounts receivable decreases, then the margin will decrease. Assuming all else holds constant. If the average accounts receivable decreases, then the turnover will increase Assuming all else holds constant. If the average accounts receivable decreases, then the turnover will decrease. Which of the following is the formula for computing residual income? Multiple Choice Net operating income + (Average operating assets * Minimum required rate of return) Net operating income + (Average operating assets + Minimum required rate of return) Net operating income - (Average operating assets * Minimum required rate of return) Net operating income - (Average operating assets + Minimum required rate of return) Which of the following is a criticism of return on investment (ROI? Multiple Choice A manager's non-operating assets are excluded from the calculation of ROI A manager can control turnover, but is unable to control margin even though it influences the calculation of ROL A manager can control margin, but is unable to control turnover even though it influences the calculation of Rol A manager who takes over a business segment usually inherits many committed costs that they cannot control, but that influence the calculation of ROI