A company you have held for two years reports revenue up 18%. The headline on the business channel says demand is strong. Twenty minutes with the investor presentation and the notes tells a different story: the volume table shows tonnes sold up 3%, a subsidiary acquired in the second quarter contributed revenue for seven months of the year, and the price per tonne rose because a raw material rose and the increase was passed on. Nothing has been misstated. One number arrived at the top of the page and four quite different things went into making it, and only some of them can happen again next year.
An auto driver counts ₹1,450 at the end of the day against ₹1,200 a year ago. He is not obviously better off. The fare per kilometre was revised upward during the year, diesel and CNG went up alongside it, and he drove slightly fewer trips because a flyover changed the traffic on his route. His takings rose. His trips fell. His costs rose. All three are true at once, and only the trips tell him anything about how many people want an auto.
Revenue is trips multiplied by fare, for every business there has ever been. Volume and price are separate facts with separate causes, and a company reports only their product. Splitting them back apart is the first honest thing you can do with a growth rate.
The four sources a growth rate is made of
| Source | What it means | How durable it is |
|---|---|---|
| Volume | More units, tonnes, subscribers, rooms, tickets, litres. The company sold more of the thing | The most durable and the hardest to fake. It is also the only one that requires a customer to have decided something |
| Price | The same units sold at a higher average realisation — either because the company raised its price, or because a cost was passed through | Depends entirely on which of those two it was. A pass-through is not pricing power, and the margin line is where you check |
| Mix | The same total units, weighted differently — more premium variants, a richer geography, a higher-value service inside the same contract | Real, often the most profitable growth available to a mature company, and the slowest to reverse |
| Acquisition | Revenue that belonged to a business the company bought, consolidated from the date of acquisition | Not growth of the business you owned last year. It was bought, and the price paid for it is a separate question the revenue line never mentions |
Where each piece is actually disclosed
- Volume — the quantitative details in the annual report, the production and sales tables many manufacturers publish, and monthly or quarterly volume disclosures filed with the exchanges by several industries as a matter of practice. Where the company reports in tonnes, units, subscribers or room nights, it has given you the denominator for everything else.
- Average realisation — usually not printed, and almost always derivable. Divide segment or product revenue by the volume disclosed for the same segment. The absolute figure matters less than its direction over five years.
- Mix — the segment note, and the product-wise breakdown in the quantitative details. Where a company sells a premium and a standard variant, watch the share of revenue rather than the share of units; those two move apart precisely when mix is doing the work.
- Acquisitions — the business combinations note. The accounting standard requires the acquirer to disclose the revenue and profit of the acquired business that have been included since the acquisition date, and, where it can be worked out, what the combined figures would have looked like had the acquisition happened at the start of the year. That second figure is the one that makes this year and last year comparable.
- The management discussion — where the company itself will often tell you the split in words. It is worth reading and worth checking, because the words are chosen and the tables are not.
Building the bridge
A revenue bridge walks from last year’s revenue to this year’s, one cause at a time, until the two ends meet. Analysts build them as a matter of routine and rarely publish them; there is nothing in one you cannot assemble yourself from disclosed figures in half an hour. The discipline is that the pieces must multiply back to the reported number, which is what stops you from telling yourself a story.
- Volume up 14%, realisation up 3.5%
- Realisation rising slightly faster than input costs, so gross profit per unit expanded
- The premium variant’s share of revenue rising faster than its share of units
- No acquisition in the year, so this year and last year are comparable without adjustment
- Capacity utilisation rising, which means the volume came from selling more of what was already built
- Volume up 2%, realisation up 9%, on an input that rose 10%
- Gross margin flat to down, because the input rose faster in percentage terms than the price did
- A subsidiary acquired partway through the year supplying about a third of the reported increase
- This year consolidates seven months of the acquisition; next year consolidates twelve, which flatters next year too and then stops
- The realisation increase reverses if the input price does, and the volume growth was inside the rate of population growth
Which source produced this growth?
Decide before you reveal.
A company reports 18% revenue growth. Volumes rose 3%, an acquisition contributed revenue from the middle of the year, and realisation per unit rose 8% while raw material cost per unit rose 9%. What is the most accurate description?
Auto wale ne shaam ko ₹1,450 gine, pichle saal ₹1,200 the. Khush hone se pehle: kiraya per kilometre badha tha, CNG bhi mehenga hua, aur flyover ki wajah se pheray kam ho gaye. Kamai = pheray × kiraya — company bhi bas dono ka guna chhaapti hai. 18% growth mein 3% tonnage, 8% daam (jo kachche maal ne 9% khaa liya), aur baaki ek khareedi hui company. Teeno alag cheezein hain.
- Revenue growth splits into volume, price, mix and acquisition; currency sits inside price, and a divestment is an acquisition with the sign reversed.
- Divide segment revenue by disclosed volume to get realisation; the direction over five years is what matters.
- Compare the change in realisation per unit with the change in input cost per unit — that is the pricing-power test.
- The business combinations note tells you what the acquisition contributed, so you can strip it out.
- A mid-year acquisition flatters two consecutive years, and the third year is where the business answers for itself.
Mark it done to track your progress through the curriculum.
Common questions
Short, direct answers to what people ask about this topic.
- revenue bridge meaning
- A revenue bridge walks from last year’s revenue to this year’s one cause at a time — volume, price, mix and acquisition — until the pieces reconcile back to the reported figure. It turns a single growth percentage into a statement about what actually happened in the business. The discipline is that the components must multiply back to the number the company reported, which is what stops a bridge from becoming a story.
- revenue that comes from a business the company has bought is called
- Inorganic growth. Growth produced by the business the company already owned is organic growth, and the two are separated by stripping out revenue consolidated from an acquisition since its acquisition date. The business combinations note in the annual report discloses what the acquired business contributed, which is what makes the split possible without estimating anything.
- how do I find how much of a company’s growth came from volume
- Take the volume the company discloses — tonnes, units, subscribers, room nights — from the quantitative details in the annual report or from the monthly and quarterly filings many industries make with the exchanges, and compare it year on year. Volume growth multiplied by realisation growth should reconcile to organic revenue growth. Cement, automobile, telecom and hotel companies in India disclose volume-type numbers as a matter of routine.
- how to calculate average realisation per unit
- Divide the revenue of a segment or product by the volume disclosed for the same segment over the same period — ₹4,000 crore of revenue on 1 million tonnes is a realisation of ₹40,000 a tonne. Companies rarely print the figure and it is almost always derivable this way. The direction of that series over five years tells you more than any single year’s absolute number.
- does a price increase mean a company has pricing power
- Not on its own — compare the change in realisation per unit with the change in raw material cost per unit over the same period. If realisation rose faster, the company kept part of the increase and had pricing power that year; if it rose slower, it was passing on a cost it could not fully recover. A pass-through tends to reverse when the input price falls, because the customers who accepted the rise expect the reversal.