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India / Turnaround / Margin bridge calculator
Free tool · India · Since 2006

Profit fell. Which of three things moved it?

Everyone has a theory. This splits the change into sales, margin and overheads, so you start with the one that did.

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The short answer

Profit fell. Which of three things moved it?

Volume. Margin. Overheads.

Volume: more or fewer sales at last year's margin.

Margin: a different percentage on this year's sales.

Overheads: costs below gross profit.

The three add up exactly to the change.

Start the diagnosis at the biggest negative bar.

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Build your bridge

Where did your profit go? A margin bridge

Splits the change in operating profit between volume, margin and overheads. Enter the figures from last year's and this year's accounts; the boxes start empty.

All costs below gross profit, including interest if you wish to see it.
Operating profit last year–
From more or less sales–
From a change in margin–
From overheads–
Operating profit this year–

Volume effect = change in revenue × last year's margin. Margin effect = this year's revenue × change in margin. Overhead effect = last year's overheads minus this year's. The three add up exactly to the change in profit.

Reading the result

If the biggest drag isStart with
MarginMargins shrinking and Discounting
OverheadsOverheads rising faster than sales
VolumeWhich products and customers earn and the sales plan

A worked illustration

Suppose revenue rises from ₹10 crore to ₹11 crore, gross margin falls from 30% to 27%, and overheads rise from ₹2.0 crore to ₹2.3 crore. Operating profit moves from ₹1.0 crore to ₹0.67 crore. The volume effect is +₹0.30 crore, the margin effect is -₹0.33 crore, and the overhead effect is -₹0.30 crore. Growth helped, but margin and overheads took more than it gave. This is an illustration, not a client result.

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In our clients' words

What owners say after the numbers started talking

Precision engineering
Their insights led us to monitor margins on a detailed customer-wise and product-wise basis, providing clarity we never had before. Their proactive approach has been instrumental in identifying areas for cost control.
Karthik Kumar.BDirector, Accurate Springs Private Limited
Product business
Thanks to CFOSurge, we now know exactly what each product contributes to our bottom line. Our sales team operates with clear geography-wise data, our accounts are well-maintained, statutory payments are handled systematically, and our inventory is finally accurate. They didn't just fix our books—they helped us plan for growth.
Vijay R. KumarMD & CEO, Noarch Innovations Private Limited

Quoted word for word from our clients. Read more client words →

FAQs

Questions owners ask us

What is a margin bridge?

A way to explain the change in profit between two periods by splitting it into volume, margin and overhead effects.

Why not just compare profits?

The total hides which factor moved. The bridge shows where to look.

Can I use it by product?

Yes. Run it per product or customer to find which one drives the change.

What data do I need?

Revenue, gross margin percentage and overheads for the two periods.

Prepared by the CFOSurge India CFO team · Last updated 30 October 2026. General information, not advice for your specific situation.

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