Learn how to track Change Order Margin % so you can see whether change orders are actually adding profit to your projects. In this lesson, you’ll learn how to break performance down by project manager and system type, compare results across your operation, and quickly spot where extra work may be producing weaker margins.
Download the Excel file used in this tutorial:
Start with a project-level dataset that includes the fields needed for change order analysis.
Make sure your table includes:
Convert the dataset into an Excel table using Ctrl + T. This makes it easier to reference columns, use structured references, and build formulas more efficiently.
Add a column for change order margin in dollars.
To do this:
This creates the dollar margin field that will be used in the summary grid.
Create the list of PM names that will appear down the left side of your matrix.
Use:
This gives you the row labels for the analysis.
Next, create the list of system types that will appear across the top of the matrix.
Use:
This creates the column headers for the matrix.
Add an Overall column and an Overall row so you can analyze:
This lets you compare detailed values against a broader benchmark.
Start with the highest-level result first.
For the overall company value:
This gives you the overall change order margin percentage at the operations level.
Now build the main matrix.
Use:
This gives you the margin percentage for each PM by each system type.
Before copying the formula across the matrix, fix the cell references so Excel behaves properly.
Use:
Set the references so:
Once the references are locked correctly, copy and paste the formula across the matrix.
To calculate the overall value for each system type:
This shows margin percentage by system type for the whole company.
To calculate the overall value for each PM:
This shows each PM’s total change order margin percentage across all system types.
Add a target cell if you want to benchmark performance against a defined goal.
For example:
This highlights areas where change order margin falls below your expected standard.
You can also benchmark performance against the company-wide overall value.
To do this:
This makes it easy to spot PM and system type combinations performing below the company average.
Once the matrix is complete, you can quickly identify:
This final layout turns a raw project dataset into a much more actionable performance view.
Q1. What is Change Order Margin %?
Change Order Margin % measures how profitable your change orders are by comparing the margin earned on change order work against the revenue generated from those change orders. It helps HVAC companies understand whether added project scope is improving profitability or creating extra work with weaker returns.
Q2. Why is Change Order Margin % important for HVAC project management?
Many HVAC companies track how often change orders happen, but fewer track whether those change orders are actually profitable. Monitoring this KPI helps project managers and operations leaders identify when change orders are dragging down margin instead of contributing healthy profit.
Q3. How can Change Order Margin % help improve project performance?
By analyzing Change Order Margin % by project manager, system type, or overall operations, you can spot where margins are underperforming and identify patterns that may point to pricing issues, labor overruns, estimating problems, or weak project execution.
Q4. What should I compare Change Order Margin % against?
A good starting point is to compare it against your base contract margin or against your company-wide average. If change order margins are consistently lower, that may signal your team is taking on additional work without protecting profitability.
Q5. Can I use this analysis across different types of HVAC jobs?
Yes. This KPI is especially useful when comparing different categories of work, such as residential vs. commercial projects or different system types. Segmenting the data helps you understand where change orders are performing well and where margins may need closer attention.
Q6. How do I identify low-performing change order margins faster?
A simple way is to build a summary view in Excel and use visual highlights to flag results below a target margin or below the company average. This makes it much easier to quickly identify underperforming areas and focus your review where it matters most.