The progress of each objective is based on the progress of its key results, thus you cannot update the value of the objective’s progress.
Updating the objective
It is a good practice to update the objective’s status and write a summary of what was going on each week. By doing so, you keep your coworkers and superiors informed, and at the same time they don't have to click through all individual OKRs.
How to update the objective?
Go to the objective’s page.
Click on the “Update” button.
Choose a date. By default, the date is set to today, but you can change it to a past date and/or time.
Choose the objective’s status. If you have updated the objective previously, you would also see the previous status.
Write a summary of the progress of the objective. You can think of this description as a message for everyone interested in this objective.