This document discusses service costing and transportation costing. Service costing is used to determine the total cost of rendering standardized services to customers. Transportation costing is used by transport services to calculate the cost of providing passenger or freight transportation. Key steps include determining cost units like passenger-kilometers or tonne-kilometers, compiling all costs, and preparing an operating cost sheet that categorizes costs as fixed, semi-variable maintenance costs, or variable operating costs. An example operating cost sheet format is also provided.