On each WBS task, you can define the applicable calculation settings. You can do so on creation of a WBS task or on a to-be-changed WBS task.

Standard procedure

1.	Go to Project management and accounting > Project change orders > All project change orders.
2.	In the list, click the link in the selected row.
3.	Click Advanced WBS.
4.	Click Edit.
5.	In the list, find and select the desired record.
6.	In the list, mark the selected row.
7.	Click the Calculation tab.
8.	In the Hour formula field, enter or select a value.
9.	In the Equipment formula field, enter or select a value.
10.	In the Item formula field, enter or select a value.
11.	In the Expense formula field, enter or select a value.
12.	In the list, find and select the desired record.
13.	Click Run WBS Calculation.
14.	Click Save.

Notes

You can also change the value of the calculation fields on a to-be-changed WBS line. In this case, you cannot change the calculation group and the scheduled unit.