This document discusses how using job costing can help businesses make more money by improving profitability calculations for projects. It defines job costing as a method for recording costs on specific projects. Business owners are advised to evaluate the profitability of completed projects to ensure they are pricing projects correctly and accounting for all costs. The document provides examples of how to use job costing to determine an hourly overhead rate and correctly assign costs to specific jobs. Overall, it emphasizes that job costing is an important tool for understanding project profitability.