Residual Income in Performance Measurement

Residual income measures the net operating income an investment earns beyond the minimum required return on its invested capital. It is calculated as $Residual\ Income = Net\ Operating\ Income - (Invested\ Capital \times Minimum\ Required\ Return)$. The minimum required return represents the cost of capital or a target hurdle rate set by management to ensure the investment covers its opportunity cost. Unlike return on investment (ROI), which is expressed as a percentage, residual income is an absolute dollar measure, providing a clearer indicator of value creation. A positive residual income implies the investment generates returns exceeding its capital cost, thereby creating shareholder value, while a negative figure indicates potential value destruction. Residual income aligns performance evaluation directly with wealth maximization and encourages managers to pursue projects that surpass required returns, mitigating the risk of underinvestment. It also avoids ROI's pitfall of rejecting profitable investments that may lower aggregate average returns. This metric thus serves as a practical and effective tool for assessing whether divisions or projects truly add financial value beyond their capital requirements.