--- title: "Fill in or change calculation variable values for WBS task" slug: "fill-in-or-change-calculation-variable-values-for-wbs-task" tags: ["Task", "Project Control Suite", "PCS"] updated: 2026-03-20T08:37:59Z published: 2026-03-20T17:46:03Z canonical: "docs.staedean.com/fill-in-or-change-calculation-variable-values-for-wbs-task" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.staedean.com/llms.txt > Use this file to discover all available pages before exploring further. # Fill in or change calculation variable values for WBS task If you use a calculation group on a task, you must enter the values for the variables. ### Steps 1. Click **Advanced project management**. 2. Click **Project quotation**. 3. In the list, click the link in the selected row. 4. Click **Advanced WBS**. 5. Click **Edit**. 6. Select an activity for which calculation group is defined. 7. Click the **Calculation** tab. 8. Click the **Estimated costs and revenues** tab. 9. In the list, find and select the desired record. 10. Click the **Calculation** tab. 11. In the list, find and select the desired record. 12. In the **Value** field, enter a number. 13. Click **Save**. 14. You can do WBS calculation per line to see the values calculated based on the formula defined. 15. Click **Run WBS Calculation**. > [!NOTE] > **Note** > > For the formula to work, both the calculation group and the model ID must be defined. 16. Click **Run WBS Calculation**. ## Related - [Use calculations in work breakdown structure](/use-calculations-in-work-breakdown-structure.md)