How to compare costs and profitability across Units

A fair comparison needs the same period, cost policy, scope and denominator. A lower cost on its own does not mean a better operation.

Published on 17 August 2026Updated on 03 September 202613 min read

MEPO team. Institutional review: Sudo Tech LTDA.

The legal, tax and sanitary references in these guides are Brazilian. Check the rules that apply in your country before applying them.

In this article

Comparing Units can reveal useful differences, but it can also create a misleading ranking. One Unit may serve a larger volume, run a different type of contract, use a more expensive menu or record its expenses more completely.

Before ranking results, management sets the accounting period, criteria and denominators, and states which data is missing. The dashboard shows, next to each number, the period, criteria and gaps.

Conditions for comparing

Compare Units only when the period, cost policy, currency, scope, allocations and denominators are equivalent. Show revenue, COGS, waste, expenses and completeness before presenting margin or a ranking.

The same word can stand for different bases. Cost per meal can use meals produced, served or billed. Revenue can be gross or net. Corporate expenses may be included in one Unit and missing in another.

A comparison starts with a dictionary of indicators. Each metric should state its formula, source, accounting period, treatment of missing values and allocation rule.

Build a common base

Close all Units in the same accounting period and apply the same recognition policy. Purchases should not automatically become COGS. CPC 16 (the Brazilian accounting pronouncement on inventories) supports inventory measurement and allows FIFO or weighted average cost for interchangeable items, applied consistently to inventories of a similar nature and use.

Corporate costs require an explicit rule. Allocating by revenue, meals or number of Units produces different results. There is no single criterion for every case; what matters is to record the rule and apply it consistently.

  • Same accounting period and cut-off date
  • Same currency and treatment of taxes
  • Same definition of revenue and COGS
  • Same policy for waste and returns
  • Same corporate allocation criterion
  • Same treatment for missing data

Sources for this section: [1], [2]

Indicators that answer different questions

Cost per meal produced helps analyse how the Unit executes. Cost per meal served brings cost closer to distribution. Revenue per meal billed helps read the financial condition of the contract. A single denominator does not answer all of these questions.

Percentage margin should only be calculated when there is positive revenue. In an accounting period with no recognized revenue, the absolute value of costs and result can still be shown, but the percentage margin has no valid denominator.

Cost per meal produced = defined costs / meals produced

Cost per meal served = defined costs / meals served

Revenue per meal billed = recognized revenue / meals billed

Operating result = revenue - taxes - COGS - operating expenses

Operating margin (%) = operating result / revenue × 100

How the denominator changes the reading

Unit A recognized R$ 40,000 in costs and produced 10,000 meals, of which 9,000 were served. Unit B recognized R$ 42,000 and produced 10,000, serving 9,800. By cost per meal produced, A looks better. By cost per meal served, B has the lower value.

The comparison does not prove that one Unit is better. It shows that the gap between production and service changes the indicator and deserves investigation. Menu, contract, quality, satisfaction, safety and completeness also need to be considered.

Unit A
R$ 40,000 / 10,000 produced = R$ 4.00
R$ 40,000 / 9,000 served = R$ 4.44

Unit B
R$ 42,000 / 10,000 produced = R$ 4.20
R$ 42,000 / 9,800 served = R$ 4.29

Completeness before margin

A Unit with an apparently high margin may have unconfirmed requisitions, unallocated expenses or a billing statement not yet issued. The dashboard needs to show these open items next to the number, not in a hidden note.

A missing value is not zero. If the meal count has not been reconciled yet, revenue should not be inferred. If the stock count has not been approved, cost may be provisional. Management can follow the closing without treating a partial result as final.

Swipe the table to see all the columns.

Completeness check by Unit
AreaQuestionRisk if incomplete
MeasurementHave the quantities been reconciled?Missing or provisional revenue
BillingHas the billing statement been issued?Accounting period with no recognized revenue
ProductionHave the requisitions been confirmed?COGS lower than actual consumption
StockAre counts and costs valid?Distorted balance and cost
ExpensesHave allocations been applied?Result higher than the real one

Use the comparison to investigate

Once the common base is in place, compare relevant variations and look for causes. A COGS difference can come from price, mix, yield or waste. A margin difference can come from rate, volume, tax, expense or completeness.

Avoid turning the lowest cost into a target without looking at the service. Reducing portions, quality or maintenance can lower the indicator and harm the contract. The comparison should include context and responsibility for each decision.

  1. Filter the same accounting period and confirm completeness.
  2. Choose an indicator with a common formula.
  3. Separate the effects of volume, price, consumption and allocation.
  4. Open the transactions that make up the value.
  5. Record the confirmed cause and the person responsible for the action.
  6. Follow the next accounting period with the same criterion.

Sources for this section: [4], [5]

Conclusions the numbers cannot support alone

There is no universal ideal COGS for Units. Academic studies can help in understanding methods, but the results of one sample, place or period should not become a mandatory reference for another operation.

A lower cost does not prove better performance. A high margin does not prove good management if costs are missing. Next to each number, state what is missing and let people open its origin.

How MEPO handles this topic

MEPO calculates net revenue, COGS, waste, allocated expenses, result, margin and cost per meal by Unit and accounting period. The view shows open items in measurement, billing, production, stock and allocation before the reading. The system does not promise savings and does not rank a Unit as better only because of a lower cost.

References

The sources support the general concepts. Specific rules can vary by contract, technical lead and local regulations.

  1. [1]CPC 16 (R1), Estoques (Inventories). Comitê de Pronunciamentos Contábeis.
  2. [2]Sumário do CPC 16 (summary of CPC 16). Comitê de Pronunciamentos Contábeis.
  3. [3]Ponto de equilíbrio e margem de contribuição (break-even point and contribution margin). Sebrae.
  4. [4]Estudo de custo-efetividade de produção de refeições coletivas (cost-effectiveness study of collective meal production). SciELO.
  5. [5]Estudo sobre custo da sobra limpa em UANs (study on the cost of clean leftovers in food and nutrition units). SciELO.

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