Measure
3. Measure your circular performance and impact
The Measure stage supports organizations in determining circular performance in a comprehensive and decision-useful way by providing organizations key indicators to assess the circular inflow and outflow of materials, evaluate their dematerialization efforts, understand the impacts of circular strategies and business models on climate, nature and social equity and link their contribution to economic value.

Figure 5: Overview of Circular Performance Assessment and Value and Impact modules
3.1 Select indicators
Consider monitoring indicators, such as percentage circular inflow and outflow, to gain valuable insights into your organization's progress on circular material use. Depending on your organization’s strategic goals, use case and stakeholder needs, additional indicators may provide decision-useful insights.
3.2 Collect data and calculate
Gather data points for each indicator, including from internal data sources. Document the methodologies, data sources, gaps and assumptions used in the calculations. With the data collected, perform the calculations as guided by the indicators.