This article discusses the importance of management accounting system and various techniques used for effective decision making. It covers topics such as cost accounting system, price optimization system, job costing system, and inventory management system. It also explains the difference between financial accounting and management accounting. The article further explores the role of management reporting and its different types. It also discusses absorption costing and marginal costing. Lastly, it delves into the tools of budgetary control including contingency planning, flexible budgeting, and forecasting tool.