The slider scale shows you:
How far along you are into the project duration based on your start and end dates (grey bubble).
How much of the budget you have spent based on your transactions
i.e timesheets and expenses submitted and issued invoices (triangle).How much work is registered as completed, as estimated by the project manager, set in the work breakdown stage progress bar or in the stage dropdown of the EVM (teal line).
It is the easiest way to interpret the information on the project performance page.
The slider scale uses the same color legend as the planning board – teal lines represent the project and phase levels, and the dark blue line represents the stage level.