A project manager's responsibility is to lead a project to a successful completion, which includes finishing the project on time, a happy customer, a proud team, etc. But it also includes financial results, right?
A project manager is preparing correct estimations and a project plan and controls their execution - these estimations and the project manager's control skills largely determine whether the project will be profitable at all. A project manager is able to organize and motivate the project team to complete the project earlier and so to increase the profitability of the project. A project manager is able to avoid or mitigate the risks and thus avoid time and financial losses. If the project is completed later than it was planned, then what is the financial impact of this failure? etc.
So what are commonly used financial indicators of a project and a project manager's efficiency (EBITDA, ROI, profitability, etc)?
The question assumes that the company earns money by doing projects for customers, for example a vendor of custom software.