This report discusses the purpose of internal reporting, relationship between various costing systems, identification of responsibility, cost, profit and investment centres, characteristics of different types of cost classifications, difference between marginal and absorption costing, and more. It also covers the recording and analysis of cost information for material, labour, and expenses, various stages of inventory, valuation of inventory using different methods, and the behaviour of different types of costs. Additionally, it discusses the attribution of overhead cost to production and service cost centres, calculation of overhead absorption rates, adjustments for under or over recovered costs, and more.