Click % Done to open Edit mode. Then you can either click the up/down arrows or directly enter a value.
However you cannot edit the progress rate for:
A project or version
Issues in gray color
You may want to synchronize the progress rate between parent and child issues. This would mean, for example, that when the progress rate of a child issue is 100%, the parent issue's progress rate will also be 100%. You can do this with Auto-calculate percent done.
The calculation of the progress rate is based on time spent and duration. For instance, if Issue A has a duration of one day with 100% done, and Issue B has a duration of two days of with 50% done, the total parent issue progress rate would be:
(100% * 1 day + 50% * 2 days) / (1 day + 2 days) = 66% (Decimals are rounded down) |
As shown in the progress bar, the one day issue has 100% percent done with all work for the day completed. The two day issue has 50% done, with one day's work completed. Therefore, for the parent issue, two days out of three are completed, equating to 66% done.