The article focuses on how to effectively communicate a tool request to management, increasing the chances of getting a 'Yes' for the proposal. The key is to demonstrate the impact of the tool on the organization's Profit and Loss (P&L) rather than just highlighting time savings or improved output. This can be done by calculating the additional revenue generated by the tool and subtracting the opportunity cost, which is the cost of not having the tool. By presenting this calculation in a straightforward manner, management should find it an easy decision to support. The article provides a general methodology for quantifying the impact on P&L, including identifying input parameters, building a simple model, and presenting the calculations in a simple and straightforward way. It also includes examples and tools, such as the liblab Investment Calculator, to help developers articulate the cost savings of using their services.