Cost accounting is a specialised branch of accounting focused on recording, classifying, analysing, allocating, and reporting the costs incurred by a business in producing goods or delivering services — with the primary objective of providing management with detailed, granular cost information for decision-making, pricing, budgeting, performance evaluation, and cost control, rather than for external financial reporting. Key cost accounting methodologies include job order costing (for customised, project-based production), process costing (for continuous, homogeneous production), activity-based costing (ABC — allocating overhead costs based on cost drivers), standard costing (using predetermined cost benchmarks and variance analysis), and marginal costing (for contribution margin analysis). Unlike financial accounting, cost accounting is primarily for internal management use. For equity analysts on Ventura Securities evaluating manufacturing, pharmaceutical, and engineering companies, understanding cost accounting principles helps decode gross margin trends, identify cost drivers, assess the impact of input price changes on profitability, and evaluate management's operational efficiency and cost discipline.