---
title: "Set up calculation groups"
slug: "set-up-calculation-groups"
tags: ["Flow", "Project Control Suite", "PCS"]
status: "new"
updated: 2026-03-20T08:34:20Z
published: 2026-03-20T17:46:07Z
canonical: "docs.staedean.com/set-up-calculation-groups"
---

> ## 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.

# Set up calculation groups

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.

## Flow diagram

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