Why Cost? An Introduction to Costing, and Why Arthexa Focuses on It

Anyone who has built or run a business knows its numbers well: last month's sales, the order book, the cash position, the key customers. That command of the numbers, earned over years, is a large part of why the business has grown.

Cost is the one number that is hard for anyone to see clearly, however experienced they are. Revenue is counted for you by customers and invoices. Cost has to be found, because it is spread across purchases, salaries, power bills, freight, rework, idle machines and the hours a team spends on difficult orders. Helping leaders see cost as clearly as they already see revenue is the reason costing exists, and the reason Arthexa exists.

This article is an introduction for business leaders. It covers what costing is, how it grew from a potter's ledger into a modern science, why it matters more today than at any time in recent memory, where Indian businesses stand, and why we have chosen to build a company around it.

1. Questions great leaders ask about cost

Experienced leaders make dozens of decisions a week on instinct, and most of that instinct is sound. It is how businesses get built. The most successful leaders we know add one more habit: before a big decision, they pause to ask a few questions about cost.

Here are seven such questions. They are worth reflecting on, not as a test, but as a way to see where sharper cost information could make good judgment even stronger.

1. Which of our products or services contribute most to profit, not just to revenue?

2. Our largest customer brings volume and stability. Once special terms and the effort to serve them are counted, how much do they add to profit?

3. On recent orders or projects, how close did the final profit come to what we expected at the start?

4. How much money is tied up in things that are not yet earning, such as stock, receivables or unused capacity, and what does that cost us each year?

5. If prices in our market fell by 5%, how much room would we have to respond?

6. Which of our costs have grown faster than our sales in the past two years, and why?

7. Is there a product, customer or activity whose true cost might surprise us?

These are demanding questions. Even the best-run companies often find that answering them precisely takes more than their regular reports provide. That says nothing about the leader or the finance team. It is the nature of cost, which stays spread across the business until someone deliberately gathers it and assigns it.

Each of these questions sits behind a decision leaders make every week: pricing, bidding, product mix, which customers to grow. Sharper answers make sound judgment even more powerful.

What costing is

Your financial accounts show the business as a whole: total material, total salaries, total power, total profit. Costing is the discipline of finding out what one specific thing really costs: a product, an order, a customer or a process. It gathers material, labour and overheads, and assigns them to the things you actually make decisions about.

India's cost-accounting profession draws the same line: financial accounting works from data recorded long after the money is spent, while cost accounting applies scientific methods to improve efficiency ([1]). Your P&L tells you the score. Costing tells you how to play.

Consider two products that both show a 25% gross margin. Product A ships in full truckloads to three large distributors who pay in 30 days. Product B goes in small, urgent consignments to two hundred retailers, with custom packaging, frequent returns and 90-day credit. On the gross-margin report they look identical. Add freight, handling, returns, sales effort and the interest on 90 days of credit, and Product B may be losing money on every sale. Without that view, it is natural to keep pushing Product B, because on the report it looks like growth.

How costs build up quietly

No one decides to lose money. A discount here to keep a customer. Extra stock there, just to be safe. A quote trimmed to win an order. A machine overhaul postponed by a quarter. Each is a sensible choice in the moment. Over time, though, they can add up: overheads creep up quarter after quarter, cash tightens even as sales grow, stock piles up, margins thin on products that "should" be profitable.

The warning signs are almost always in the numbers before they reach the bank balance. Guidance from the profession stresses that reliable cost data is essential for spotting industrial sickness early, and that keeping cost records costs little compared with what it protects ([2]). Costing is how leaders read those signs early, while every option is still open.

A business saved by its numbers

Costing was not invented by accountants. It was invented by business owners under pressure.

Josiah Wedgwood, the English potter, ran one of the most admired businesses of the Industrial Revolution. For years his wares sold at high prices and he paid little attention to detailed accounts. Then, in the early 1770s, a recession hit, demand fell, stock piled up and many firms around him failed ([3]).

Wedgwood responded by working out, product by product, what each item really cost. Historian Neil McKendrick's study of his records shows that the exercise revealed large cost differences between products he had treated as alike ([4]). He repriced or dropped weak lines, understood how volume spread his fixed costs, and built separate premium and volume markets. He survived the downturn, and the brand still exists. Many of his competitors did not.

Skill in action

In the Bhagavad Gita, Krishna describes yoga as yogaḥ karmasu kauśalam: skill in action (2.50). It is a useful lens on cost. Costing is not about doing less, spending less or saying no to growth. It is about acting with precision: spending more where it builds value, and stopping the leaks where it does not.

That is the dividing line in every downturn, from Wedgwood's 1770s to today. The survivors are rarely the companies with the highest sales. They are the ones that know what their sales cost them.

If some of the seven questions above sparked curiosity, that curiosity is where good costing begins. The rest of this article explains how costing became a science, why it matters more now than ever, and where Indian businesses stand.

2. From ledgers to science: how costing evolved

Each major advance in costing came from businesses seeking a clearer view than their existing numbers could give. Each new method answered a question the previous one could not.

Standard costing sets what a unit should cost and studies the variance from actual, turning a vague sense that costs are rising into a specific question about where and why. Industrial engineers of the scientific-management era set standards for material, labour and machine time for exactly this purpose ([5]). Marginal costing separates fixed from variable cost, so leaders know what an extra order really adds to profit.

Activity-based costing arrived when overheads overtook direct labour as the largest cost. Old systems spread overheads by labour or machine hours, so simple high-volume products were overcharged and complex, customised ones were undercharged. Robin Cooper and Robert Kaplan of Harvard showed in HBR from 1988 that assigning each activity's cost by actual consumption reveals which products and customers truly earn money ([6]). Cooper's warning signs still apply: when your system says a hard-to-make product is highly profitable, or operations managers want to drop products the system calls profitable, it is a sign the costing method is due for an update ([7]). In 2004 Kaplan and Steven Anderson simplified the method into time-driven ABC, which estimates the time each order or transaction takes and the cost per minute of the resources used ([8]).

Target and kaizen costing came from Toyota, and flipped the logic. Instead of adding up costs and setting a price, Toyota starts from the price the market will pay, subtracts the profit it needs, and treats the result as the cost the product must achieve: target cost = target price − target profit ([9]). Engineers design to that number, because most of a product's cost is fixed at the design stage. Kaizen costing then drives continuous reduction once production starts, and cost maintenance stops the gains slipping back ([10]). Toyota places cost ownership with engineering and manufacturing, not only with finance, which is why its system produces action rather than reports.

Data science and AI are the latest step. Every earlier method was limited by how much data people could collect and analyse by hand. Today, most companies already hold the transaction data in their ERP and accounting systems: every purchase, stock movement, production run, shipment and quote. Modern statistical models and AI can read all of it, estimate the true cost of each product, order and customer, and test what each decision would be worth. A 2025 survey of finance professionals found these tools gaining ground, even though traditional methods still dominate ([11]).

3. Why cost matters more now

Cost management used to be something companies turned to in bad years. That has changed. Long-running global cost surveys documented the shift years ago: companies were reducing cost continuously, in good times as well as bad, and using the savings to fund growth ([12]). In 2026, cost sits at the top of the boardroom agenda worldwide:

Three forces explain why cost has become more important, not less:

• Margins are thinner and competition is global. Buyers can compare suppliers across countries in minutes. Cost differences that once mattered little now show up in every tender.

• Leaders must fund the future while protecting the present. AI, automation and digital systems need investment. The money has to come from somewhere, and the only sustainable source is cost that creates no value.

• Volatility has become normal. Input prices, freight rates, currencies and tariffs now swing within a single quarter. A cost picture that is updated once a year is out of date for most of it.

Optimizing, not cutting

The most important shift is in how companies manage cost. Across-the-board cuts, such as 10% off every budget, deferred maintenance or the cheapest vendor, often raise total cost later through breakdowns, rework and lost customers. Long-running research has found that many cost programmes miss their targets; in one survey edition, the share falling short rose from 48% to 58% ([12]).

Cost optimization asks a different question: what is each rupee buying, and is it worth it? Sometimes the answer is to spend more in one place, on maintenance, quality or a better vendor, so that total cost falls. That requires precisely the knowledge costing provides.

The arithmetic shows why this attention pays off. Every rupee of cost saved goes straight to profit. A rupee of new sales adds only its margin. At a 5% net margin, ₹1 crore of cost saved is worth as much profit as ₹20 crore of additional sales, and it needs no new customers or working capital.

4. The Indian picture: large enterprises and the SME gap

India takes costing more seriously in law than most countries. Under Section 148 of the Companies Act, 2013 and the Companies (Cost Records and Audit) Rules, 2014, companies in notified industries must keep cost records, and larger ones must have them audited by a practising cost accountant ([16]; [17]).

This creates two very different situations.

Large enterprises have strong records, and an opportunity to get even more from them. Statutory cost records are built for compliance: annual, standardised and audited. They rarely answer the questions management faces every week, such as which customer is losing money this quarter, or whether a particular quote will be profitable. Compliance is the foundation; cost management builds on it. The profession is pushing further still: a cost governance and assurance framework was recently presented for the insurance sector, treating cost as a management and governance parameter rather than just an accounting number ([18]).

SMEs have the most to gain. The MSME exemption rightly spares smaller firms the compliance burden. It also means that cost insight in SMEs rests on the initiative of their leaders, and research shows how well that initiative pays:

• Most Indian MSMEs rely on manual budgeting, broad cost cutting and basic inventory controls. Modern methods such as ABC, target costing and lean management remain underused because of limited awareness and skills ([19]).

• The same study cites Ministry of MSME research linking cost tracking and financial planning closely to whether MSMEs come through their early years.

• Where MSMEs did adopt cost management, the evidence is encouraging. In the study's Bangalore sample, 62% reported improved profitability after implementing it.

• International research points to the same barriers: lack of resources, knowledge and training holds SMEs back, while rising competition and margin pressure push them towards better costing ([20]).

India's economic conditions make the gap more costly. Capital is expensive, and MSME loans often carry rates 300–600 basis points higher than large-company loans ([21]). Every rupee tied up in slow stock or unprofitable orders therefore costs an Indian SME more than it would cost a competitor in many other countries.

5. Why Arthexa focuses on cost

We started Arthexa because of a pattern our team has seen again and again, from inside pharmaceutical and manufacturing companies and from more than two decades of cost-accounting practice: the numbers are there and the signals are there, but busy leaders rarely receive them in a form they can act on in time.

Cost drifts quietly. No single decision causes it, and there is no pain for years. The signals are usually visible long before the crisis: overheads creeping up each quarter, cash tightening while sales grow, stock piling up in the warehouse, margins thinning on products that should be profitable.

The history in this article explains why the problem has persisted. The methods to find true cost have existed for decades. ABC, target costing and time-driven costing are well proven. What held most companies back was the effort: collecting the data, building the models and keeping them current took specialist time that only the largest firms could afford, and even then the result was usually a report rather than a decision.

That constraint has now gone. Almost every enterprise already holds the data in its ERP and accounting systems. Statistical models, data science and AI can now do in hours what used to take a costing team months. So we believe the next step in costing is not another report or dashboard. It is software that:

• Builds the true cost picture of each product, order, customer and quote from data a company already keeps.

• Tells you what to do about it: what to save, where, how and why, with the value of each action.

• Optimizes rather than cuts, by showing where spending more lowers total cost, and where money creates no value.

• Brings this within reach of mid-sized companies and SMEs, not only the largest groups with in-house costing teams.

Our team combines IIT-trained engineers, Cost and Management Accountants, cost auditors and former managing directors. We believe leaders deserve cost insight as clear and timely as their sales figures, not a year-end report.

Future articles will go deeper: how to find products that lose money, how much inventory is really costing you, why quotes go wrong, and how Indian businesses can turn cost from a handicap into an advantage, at home and in global markets.

If you would like to explore what deeper cost insight could add to your business, our team would be glad to talk it through in a 30-minute cost discovery call.

1.Sources

1. https://icmai.in/ClntMembers/ProfessionalAvenues

2. https://www.icmai.in/upload/Institute/Relevance-and-Utility.pdf

3. https://martinjquinn.com/2011/04/11/cost-accounting-a-revisit-and-some-history/

4. https://kajmeister.com/w-is-for-wedgwood

5. https://arxiv.org/pdf/2501.06584

6. https://en.wikipedia.org/wiki/Activity-based_costing

7. http://spartan.ac.brocku.ca/~pscarbrough/dfca1stmods/dfc/abc/abcbib.html

8. https://books.google.com/books/about/Time_Driven_Activity_Based_Costing.html?id=k7LUVKYnFU8C

9. https://en.wikipedia.org/wiki/Target_costing

10. https://artoflean.com/reference/cost-management/

11. https://www.imanet.org/en/Press-Releases/2025/May/New-Deloitte-IMA-Survey-Highlights-Emerging-Technology-Trends

12. https://www.deloitte.com/dk/en/services/consulting/research/gx-global-cost-survey.html

13. https://www.deloitte.com/us/en/insights/topics/business-strategy-growth/1q-2026-cfo-signals-survey.html

14. https://www.mavvrik.ai/blog/ai-cost-statistics-2026/

15. https://www.grantthornton.com/insights/press-releases/2026/march/cfos-accelerate-tech-spending-as-ai-momentum-increases

16. https://taxguru.in/company-law/comprehensive-guide-cost-audit-applicability-exemptions-compliance.html

17. https://corporatelawreporter.com/companies_act/section-148-of-companies-act-2013-central-government-to-specify-audit-of-items-of-cost-in-respect-of-certain-companies/

18. https://www.thefinancialworld.com/icmai-presents-inscost-framework-for-cost-management/

19. https://rsisinternational.org/journals/ijrias/articles/an-empirical-study-on-cost-management-practices-in-msmes-and-their-impact-on-financial-performance/

20. https://link.springer.com/article/10.1007/s11365-023-00938-2

21. https://www.moneylife.in/article/why-indias-high-cost-of-capital-is-structural-and-unlikely-to-fall-meaningfully/79516.html