In today's business world, making business decisions is extremely complicated. Managers who have a full range of tools that assist in decision-making have the opportunity to lead their organization to a competitive advantage. The Quantitative Analysis Tool (QAT) is one such tool that managers can utilize in their decision-making. Interestingly, the QAT is dimming in popularity as seen in the decreasing emphasis on the QAT in the business and management curriculum in universities and lower application in the workplace. This study is aimed at studying the benefit of QAT to hopefully increase the utilization of this useful tool in organizational decision-making. Technology Acceptance Model, Unified Theory of Acceptance and Use of Technology, and Theory of Planned Behaviour have shown that there is a relationship between (1) performance expectations and (2) self-efficacy and behavioural intention to use. Studies have found that there is a relationship between facilitating conditions and actual usage of QAT but no relationship between behavioural intention to use and actual usage of QAT. Findings in this study will definitely benefit managers who want to apply QAT to help manage their organizations. [ABSTRACT FROM AUTHOR]