The net profit of a project is the difference between the revenue and the cost.
The net profit displayed in Timmi Project is the net profit up-to-date. It is the difference between the revenue made by the activities declared on the project, and the cost of these activities.
The cost up-to-date is displayed when hovering the cost to complete with the mouse pointer.
In the example above, the employee has worked 2 days on project ABC, with a cost of €1,500 (€750 per day). The progress rate is 40% (2 days worked on a revised budget of 5 days), so the revenue is €4,000 (€10,000 x 40%). The net profit is therefore €2,500 (4,000 - 1,500).