The assignment content discusses the calculation of selling price under Activity-Based Costing (ABC) and compares it with the conventional method. The conventional method allocates indirect costs using a blanket rate, which can lead to mispricing of products. ABC, on the other hand, is a scientific and reliable method that considers actual consumption of resources by various activities. It involves identifying cost drivers, allocating overheads according to consumption, and provides accurate product costs. The benefits of ABC include accurate product costs, cost behavior information, process enhancement, proper utilization of capacity, improvement in pricing strategies, and better decision making. However, there are also disadvantages, such as high implementation costs, accuracy of data, lengthy process, and not being suitable for smaller companies.