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Summary Activity Calculation Example
The scheduling values for a summary activity are calculated based on the information provided for its sub-activities (the “child” activities).Summary activity progress is tracked through each child activity. A summary activity is finished when all child activities have been marked complete.
For example, consider a summary activity that has four child activities:
 Child Activity Start Finish Duration Work % Work Complete Activity 1 01-06-2017 01-17-2017 10 days 50 hours 100% Activity 2 01-15-2017 01-24-2017 8 days 30 hours 75% Activity 3 01-09-2017 02-05-2017 20 days 80 hours 25% Activity 4 01-08-2017 01-10-2017 3 days 10 hours 100%
 The duration is the number of working days between the start and finish dates. This example uses a work week that extends Monday through Friday, with 40 hours of work per week.
As a result, the summary activity has the following values:
 Start Finish Duration Work % Work Complete 01-06-2017 02-05-2017 23 days 170 hours 60%
Duration
The duration is calculated based on the number of working days between the earliest start date (01-06-2017) and the latest finish date (02-05-2017) from among the child activities.
Work
The work is calculated based on the sum number of hours for all child activities.
% Work Complete
Progress is weighted based on how much work each activity represents:
 (Child Activity Work ÷ Total Work) * 100 = Percent of work that the child activity represents
For example, Activity 4 represents 10 hours out of 170 hours of work:
 (10 ÷ 170) * 100 = 5.8
Therefore, when Activity 4 is completed, 6% (rounded to the next whole number) is added to the percentage of work complete for the summary activity.