Strategic Cost Management · Uniform Costing and Inter-firm Comparison

Inter-firm Comparison: Procedure, Ratios and Reports

Updated 11 October 2026 · Fact-checked

Inter-firm comparison (IFC) is a scheme where firms in one industry voluntarily share cost and performance data through a central body. The body converts the data into ratios, compares each firm with the group, and sends confidential reports. To answer questions, state the steps, name the ratios, and show how the firm should act on the gaps.

Understand Inter-firm Comparison: Procedure, Ratios and Reports

Inter-firm comparison means comparing your firm's costs, ratios and results with those of other firms in the same industry. The aim is to find where you are weaker or stronger than others, and then act on it.

It works through a central coordinating body, such as a trade association, a research institute or a professional body. Firms join voluntarily. They send data in a common format. The body collects it, checks it, computes ratios and sends each firm a report.

The comparison is only fair if the data is on the same basis. So the body fixes common definitions, cost classification and accounting treatment. This is why uniform costing helps IFC. Uniform costing is a common set of costing methods used by member firms. IFC is the act of comparing results. IFC can run without uniform costing, but then the body must adjust the data to make it comparable.

The ratios fall into two groups. Primary ratios show overall performance, such as return on capital employed. Secondary ratios explain the primary ratio, such as profit margin, asset turnover and cost-to-sales ratios. A weak primary ratio is traced down through the secondary ratios to its cause.

Reports go to each firm separately. A firm sees its own figures against the group average, best and range. It does not see the names of other firms. This confidentiality is what makes firms share honest data.

Key rules to remember

Primary ratio: Return on capital employed: ROCE = (Profit before interest and tax ÷ Capital employed) × 100; Profit and capital employed must be defined the same way for all firms. The scheme's manual fixes the definition.
Secondary ratio: Profit margin: Profit margin = (Profit ÷ Sales) × 100; First component of ROCE.
Secondary ratio: Capital turnover: Capital turnover = Sales ÷ Capital employed; Second component of ROCE.
Link between primary and secondary ratios: ROCE = Profit margin % × Capital turnover; Use it to find whether a low ROCE comes from low margin or low asset use.
Cost element ratio: Cost ratio = (Cost element ÷ Sales or production value) × 100; Applied to material, labour, overheads and selling cost. Compare each with the group average.
Gap against benchmark: Gap = Firm's ratio − Group average (or best) ratio; For cost ratios a positive gap is unfavourable. For profit ratios a negative gap is unfavourable.

How to solve Inter-firm Comparison: Procedure, Ratios and Reports questions

Use this method for any question on IFC procedure, ratios or reports.

1Read the question and mark what is asked: procedure, ratios, report, advantages and limitations, or a numerical comparison.
2For a procedure question, write the steps in order: decide the scheme and appoint the central body, enrol firms, fix common definitions and formats, collect data, check and process it, compute ratios, issue confidential reports, follow up with firms.
3For a ratio question, split into primary and secondary ratios. Name each ratio and give its formula.
4For a numerical question, compute each firm's ratios using the same formula, then compare with the group average or best firm.
5Find the cause of any gap by moving from the primary ratio to the secondary ratios and cost ratios.
6Quantify the gap in rupees or percentage points where data allows.
7Give a clear recommendation: which cost heads to examine and what action to take.
8Add one line on limitations if marks are given, such as non-comparable data or confidentiality.

Quickest way: Primary to secondary to cost ratio drill

When to use it: Use for a numerical question with data of two or three firms and a short time limit.

Compute ROCE for every firm first.
Split ROCE into margin and capital turnover. Identify which one explains the gap.
If margin is the cause, compute cost ratios per head against sales.
Mark the head with the largest unfavourable gap.
Write a two-line recommendation naming that head.

Common mistakes in Inter-firm Comparison: Procedure, Ratios and Reports

Treating IFC and uniform costing as the same thing.
Both appear in one chapter and both aim at comparability.
Fix: Say uniform costing is the common costing method used by firms. IFC is the comparison of results among firms. Uniform costing makes IFC easier.
Listing procedure steps in the wrong order or skipping the common definitions step.
Students recall the steps as a loose list.
Fix: Remember the flow: body, enrolment, common basis, data, processing, ratios, reports, follow-up.
Computing ROCE with different capital definitions for different firms.
Data is given in different forms in the question.
Fix: Choose one definition, state it, and apply it to every firm.
Stating the gap but not the cause.
Students stop after computing ratios.
Fix: Use ROCE = margin × turnover and cost ratios to locate the cause, then recommend.
Saying the report names competitors.
Confusion with published industry surveys.
Fix: State that each firm gets its own results against group figures, and other firms stay anonymous.
Treating a favourable-looking cost ratio as always good.
Lower cost is assumed to be better.
Fix: Check quality, product mix and capacity use. A low ratio can reflect cheap inputs or a different product range.

Worked examples

Example 1

Two firms in the same industry report the following for a year. Firm A: Sales ₹80,00,000; profit before interest and tax ₹8,00,000; capital employed ₹40,00,000. Firm B: Sales ₹60,00,000; profit before interest and tax ₹9,00,000; capital employed ₹30,00,000. Compare the firms using primary and secondary ratios and state what Firm A should examine.

Show the solution

Firm A ROCE = 8,00,000 ÷ 40,00,000 × 100 = 20%.
Firm B ROCE = 9,00,000 ÷ 30,00,000 × 100 = 30%.
Firm A profit margin = 8,00,000 ÷ 80,00,000 × 100 = 10%.
Firm B profit margin = 9,00,000 ÷ 60,00,000 × 100 = 15%.
Firm A capital turnover = 80,00,000 ÷ 40,00,000 = 2 times.
Firm B capital turnover = 60,00,000 ÷ 30,00,000 = 2 times.
Check: A = 10% × 2 = 20%. B = 15% × 2 = 30%.
Capital turnover is equal, so the whole ROCE gap of 10 percentage points comes from profit margin.

Answer: Firm B has ROCE of 30% against 20% for Firm A. Capital turnover is the same at 2 times, so the gap is due to margin (15% against 10%). Firm A should examine its cost ratios (material, labour, overheads, selling) and its selling prices to find where it loses 5 percentage points of margin.

Example 2

An IFC scheme reports these cost ratios as a percentage of sales. Your firm: material 52%, labour 18%, overheads 14%. Group average: material 48%, labour 19%, overheads 15%. Your sales are ₹1,00,00,000. Identify the areas of concern and quantify the effect on profit.

Show the solution

Material gap = 52% − 48% = 4 percentage points, unfavourable.
Labour gap = 18% − 19% = −1 point, favourable.
Overheads gap = 14% − 15% = −1 point, favourable.
Net gap = 4 − 1 − 1 = 2 points unfavourable.
Material excess = 4% × ₹1,00,00,000 = ₹4,00,000.
Labour saving = 1% × ₹1,00,00,000 = ₹1,00,000.
Overhead saving = 1% × ₹1,00,00,000 = ₹1,00,000.
Net effect = 4,00,000 − 1,00,000 − 1,00,000 = ₹2,00,000 lower profit than if the firm matched the group average.

Answer: Material cost is the area of concern. It is 4 points above the group average and costs ₹4,00,000. Labour and overheads are better than average by ₹1,00,000 each. Net, profit is ₹2,00,000 lower than at group-average ratios. The firm should review purchase prices, wastage and yield, and check that the lower labour cost is not due to a different product mix.

Exam tips

Write the procedure as numbered steps. Examiners give marks per step.
In numerical questions, state the formula and the capital definition you use before computing.
Always end a comparison with a recommendation tied to the largest unfavourable gap.
For the difference between uniform costing and IFC, give two or three points: nature, purpose and dependence.
For advantages and limitations, keep two lines each and add one practical example.

Practice questions from Uniform Costing and Inter-firm Comparison

Inter-firm Comparison: Procedure, Ratios and Reports: frequently asked questions

What is the procedure of inter-firm comparison?

A central body is set up and firms are enrolled. Common definitions and data formats are agreed. Data is collected and checked, ratios are computed, and each firm receives a confidential report. The firm then acts on the gaps.

What is the difference between uniform costing and inter-firm comparison?

Uniform costing means firms follow the same costing principles and methods. Inter-firm comparison compares the results of firms on a common basis to find strengths and weaknesses. Uniform costing makes the comparison reliable, but IFC can also work with adjusted data.

Which ratios are used in inter-firm comparison?

Primary ratios such as ROCE show overall performance. Secondary ratios such as profit margin, capital turnover and cost-to-sales ratios explain the primary ratio. Cost element ratios help trace the cause of a gap.

What are the limitations of inter-firm comparison?

Data may not be fully comparable because firms differ in size, product mix and accounting practice. Firms may hesitate to share data, and the scheme needs time and money to run. Ratios show where the gap is, not why it exists.