Where growth comes from

A company reports that revenue grew eighteen per cent. The headline goes up, the analysts nod, and everyone moves on to the margin. But eighteen per cent is not a fact about the business — it is a sum, and the same sum can be reached by stacking completely different blocks.

One company sold more units into a category that still has room to grow. Another raised prices on the same volume at the top of a cycle. A third bought a business halfway through the year. A fourth just watched the rupee fall and translated the same foreign sales into more of them. All four print eighteen per cent. All four are worth different things, and next year they will diverge, because the driver that produced this year's number is the same driver that will or will not produce next year's.

So the question this module answers is not how fast did it grow but where did the growth come from — and once you can decompose the number, you can tell durable growth from a peak, earned growth from bought growth, and a business getting better from an accounting translation.

Growth is the input to almost every valuation, and it is the single number a management most wants you to read charitably. That is exactly why it is the number most worth pulling apart.

The reason the source matters is that different drivers have different persistence. Volume growth in a genuinely growing category tends to repeat — the customers who bought this year are still there, and more are arriving. A one-off price rise does not repeat: you get it once, then next year's base already includes it. A cyclical price spike does worse than not repeat — it reverses, so the same driver that added to growth this year subtracts from it later. Acquired growth is real but must be paid for, and it only creates value if the acquisition earns back its price. A currency tailwind is not the company doing anything at all.

This is why "high growth" is not, on its own, a compliment. Growth is a container; what is inside it decides what it is worth. And the whole of Part Seven — the runway that follows, the compounding formula, the growth that destroys value — rests on being able to open the container first.

Reported revenue growth breaks into a small set of drivers that sum back to the headline:

• Volume — more units sold. The most durable driver when the category is growing, because it comes from real demand rather than from a price you took once.
• Price / realisation — the same units at a higher price per unit. Durable when it is genuine pricing power (you raised your price and kept your customers); dangerous when it is a cyclical or commodity price you did not set and cannot hold.
• Mix — the same volume shifting toward higher-value products. Durable when the premium end is growing in absolute terms; hollow when the ratio only improved because the cheaper end shrank.
• Acquired (inorganic) — revenue from a business bought during the period. Real, but it is not the existing business accelerating, and it has to earn its price.
• Currency — the same foreign sales translated at a different exchange rate. Not the business doing anything; it reverses when the rate does.

The first three together are organic growth — what the business the company already owned did on its own. Separating organic from acquired, and then volume from price within the organic part, is the core move. A management that grew ten per cent on volume in a growing category has done something quite different from one that grew ten per cent on a commodity price at a cyclical high, even though the income statement shows the same line.

The discipline is to find the numbers. Volume growth is often disclosed directly (tonnes, units, subscribers, room-nights) or extractable from the segment note; the management commentary and the concall attribute the rest between price and mix; the acquired portion is disclosed when a business is consolidated. When a company grows well but refuses to disclose volumes — reporting only value — that silence is itself a signal, because a business growing on real units is usually happy to show them.

Take a composite consumer company, Kalindi Consumer illustrative, that reports revenue up eighteen per cent and lets management frame it as "broad-based growth across the portfolio." Pull it apart from the disclosures and the concall, and the eighteen becomes: volume +4, price +8, mix +3, acquired +5, currency −2. [illustrative]

Now the single number tells a story the headline hid. Only four points are volume — the actual "more customers bought more" driver — and it is the smallest block. Eight points are price, taken in a year of high input costs the company passed through; that is not durable pricing power so much as cost-push that will not repeat once inputs stabilise. Five points were bought. So of the eighteen, perhaps four to seven points describe the underlying business getting bigger on its own steam, and the rest is price that will lap, a mid-year acquisition that must earn its price, and a currency swing that is nobody's achievement.

The point of the exercise is not to be sour about the growth. It is that if you were paying a rich multiple for "an eighteen-per-cent grower," you were paying for a number whose durable core is closer to mid-single-digits. The decomposition does not tell you the company is bad; it tells you what you are actually buying.

The growth that matters — the block you should weight most heavily — is not the same block in every sector. In a consumer business it is volume and distribution reach, because pricing is small and steady and the game is more units in more shops. In a commodity it is almost the opposite: realisation moves with the cycle and dominates the headline, so the durable question is cost position, not this year's price-driven growth. In IT services it is new-client wins and wallet share; in a lender it is AUM growth and the spread it is earned at, because AUM bought with a thin or deteriorating spread is growth that destroys value. Read the wrong block for the sector and you will celebrate exactly the growth that is about to reverse.

Splitting growth into its drivers tells you what produced the number and whether each block is likely to repeat. It does not, on its own, tell you three things.

It does not tell you whether the growth was worth having — that needs the return on the capital the growth consumed, which is the subject of value-destructive growth and the compounding formula later in this part. Volume growth funded by capital that earns below its cost destroys value however durable the volume is.

It does not tell you the runway — how long the durable drivers can keep running before the category saturates or capacity binds. A high-quality volume block with a two-year runway is a different investment from the same block with a fifteen-year runway.

And it does not, by itself, verify the volume figure. A company can overstate real demand by pushing stock into the channel — realisation and reported volume can both look healthy while inventory quietly piles up at distributors. The decomposition points you at the right question; confirming the volume is real is the job of scuttlebutt and the working-capital check.

The commonest error is crediting price to the business. A commodity producer's revenue surges because the commodity price surged, and the market extrapolates it as if the company had done something durable. It had not; the cycle did, and the cycle turns. A cyclical price spike read as a trend is noise mistaken for signal — and it is mistaken in the most expensive direction, because you pay up at the peak.

The second error is letting acquired growth flatter the base. A company grows forty per cent, thirty of it bought, and the multiple expands as if the underlying business were compounding at forty. When the acquisition laps and organic growth is revealed at nine, the "deceleration" is treated as a problem — when in truth the nine was the real number all along.

The third is hollow mix improvement. Premium share rises, management calls it premiumisation, and it turns out the premium end was flat while the mass base fell — the ratio improved by subtraction, not by growth. A better mix built on a shrinking business is arithmetic, not strategy.

The fourth is value-only disclosure. A company reports revenue growth but not volumes, quarter after quarter. Sometimes it is genuinely hard to define a unit; often it is because the volume line is weaker than the value line, and the price or mix doing the work will not last. The refusal to show units is itself part of the answer.