Organisational leaders and HR professionals often claim that employees are their greatest resource. To substantiate this, HR professionals need to demonstrate the benefits of their investments for employees and contributions of their employees effectively. However, many HR professionals are not well-versed in showcasing the return of their activities and investments for their employees’ performance. In this paper, we present an example illustrating how HR professionals can calculate the return on investment (ROI) from HR-related activities and investments. Additionally, we explore the areas where HR professionals should focus their data analysis efforts in the era of AI. The insights from this conceptual paper have significant implications for HR managers regarding their role in data-driven decision-making and management.