Use calculation groups to define:

• The formulas that are used to calculate the estimate line quantities for activities in the work breakdown structure.
• The models with the default formulas for each transaction type.
• The setup that is required for progress billing: a variable that is marked as scheduled unit. For progress billing, usually, the scheduled unit variable is a percentage.
• The setup that is required for subcontracting: a variable that is marked as scheduled unit and for which the unit is defined as well. Reason: Subcontracting uses purchase orders, and on the purchase lines a unit is required.
• A cost price (expense) or sales price (expense) for a specific scheduled unit.

Standard procedure

1.	Go to Project management and accounting > Setup > Advanced project management > Calculation groups.
2.	Click New.
3.	In the Group field, type a value.
4.	In the Description field, type a value.

Notes

You can also make a copy of an existing calculation group and modify it. To do so, select a calculation group, click Copy group, fill in the fields, and click OK.