This article discusses the differences between absorption costing and activity-based costing, their advantages and disadvantages, and the steps involved in each process. Absorption costing includes all costs, both variable and fixed, in the product cost, while activity-based costing allocates overhead costs to each activity of the production process. Absorption costing is simpler but less accurate, while activity-based costing is more complex but more reliable. The article also highlights the pros and cons of each costing method.