Pre-requisites:
Required role privilege 'Can Access Audit Information' on the project where the progress on a workflow instance is to be checked.
Follow the steps for navigating to workflow instances then go to the particular workflow instance on which you need to check progress.
Upon right-clicking a workflow instance, you get an option 'Progress'. It allows you to view the progress of the selected workflow instance.
Relevant information is displayed at the top including workflow name, workflow status on the object it was applied, start date and time, and end date and time (as applicable).
To understand the legends (colours) used for different workflow objects on the 'Workflow Status' screen, mouse hover on the 'i' (info) icon which will open a popup.
It will show all the available legends and what they refer to, for both incomplete or completed tasks.
To maximize or minimize the view, click the 'Maximize' or 'Minimize' option available at the top right and vice versa. To refresh the workflow progress and get the latest updated information, click the 
icon.
Next Article: Manage a Workflow Instance in Progress (Overview)