A small business should track expense ratios linked to its major costs and operating decisions. Useful candidates include employee cost to revenue, delivery cost to revenue, selling expense to revenue, occupancy cost to revenue and finance cost to revenue. Add a cost-per-unit measure where the activity driver explains the expense better than sales value.

Choose a small set the team can explain every month. A dozen unexplained percentages are less useful than four ratios connected to prices, volume, capacity and service quality. Keep rupee costs beside the ratios so a falling percentage does not conceal a rising cash commitment.

Define the numerator before calculating

For each ratio, list the included ledger accounts. Employee cost might include salaries, incentives, employer contributions and contract staff, depending on the purpose. Delivery cost might include freight, fuel, outsourced vehicles and handling. Consistency matters more than a short attractive label.

Use incurred expenses, including appropriate accruals, rather than only bank payments. An annual insurance payment and a late electricity bill should not create arbitrary monthly swings if the report is intended to measure monthly performance. ICAI AS 1’s accrual and consistency principles support this distinction.

Separate operating costs from asset purchases, loan principal and owner drawings. If a management measure includes a notional owner salary, label it separately and reconcile it to the accounting result. Do not mix an economic estimate into reported expenses without explanation.

Select ratios that fit the business

A distributor may focus on delivery, warehouse staffing, selling costs and receivable-financing costs. A consulting firm may need employee cost, subcontractor cost and non-billable time. A manufacturer may monitor power, maintenance and production labour against output as well as revenue.

Cost questionUseful measureSupporting operating detail
Are deliveries economical?Delivery cost ÷ revenueCost per drop, route density
Is staffing capacity well used?Employee cost ÷ revenueOutput or billable hours
Is selling spend productive?Selling cost ÷ revenueOrders, contribution and conversion
Are premises underused?Occupancy cost ÷ revenueSpace and capacity use
Is funding becoming expensive?Finance cost ÷ revenueAverage debt and rates

These are management measures, not a universal statutory ratio list. Define the period and tax basis, and use the same revenue base across comparable expense ratios.

Work through a delivery example

An illustrative Lucknow food-packaging distributor earns ₹20 lakh monthly revenue and incurs ₹1 lakh delivery expense. Delivery cost to revenue is 5%. Next month revenue rises to ₹25 lakh and delivery expense to ₹1.5 lakh, raising the ratio to 6%.

The cost grew 50% while sales grew 25%. Investigate order count, average order value, routes, emergency dispatches and returns. If deliveries increased from 400 to 750, cost per delivery actually fell from ₹250 to ₹200. The higher sales-based ratio may reflect many more small orders.

The action could be an order minimum or revised delivery schedule rather than a blanket cut to vehicle spending. Calculate whether small orders contribute enough gross profit after delivery and handling before changing the commercial policy.

Distinguish fixed and variable costs

Rent can remain unchanged while revenue fluctuates. If monthly rent is ₹1 lakh, its ratio is 5% at ₹20 lakh sales and 4% at ₹25 lakh sales. The apparent improvement comes from spreading the same cost over more revenue, not from renegotiating rent.

Variable costs should be compared with their activity drivers. A sales commission may follow revenue, while packing material follows units or parcels. A flexible comparison adjusts the expected cost for actual activity before assessing efficiency.

Some costs rise in steps. Hiring another supervisor or opening another warehouse can increase the fixed base before full utilisation. Document the capacity decision and compare actual growth with the plan instead of treating every temporary ratio increase as waste.

Use meaningful monthly comparisons

Show current month, year-to-date and a comparable prior period. Seasonal businesses should include the same month last year, while adjusting the interpretation for price and capacity changes. A rolling view can reveal whether a one-month spike is persistent.

Avoid percentages where revenue is zero or unusually low; show the rupee cost and explain the operating situation. Pre-opening expenditure and a temporary closure require a different comparison from normal trading months.

Check reclassifications and catch-up entries. A large professional-fee invoice covering several months may explain a spike, but the report should also assess whether accruals were previously missing. A timing explanation is not permission to ignore a real cost.

Keep the ratio owner close to the operating data. Finance can verify ledger totals, while logistics, sales or service managers explain activity and resource use. Agreement on the driver prevents a monthly review from becoming an argument over a percentage that nobody has defined consistently. Record any revised definition before the next reporting cycle and preserve the earlier comparison.

Set actions without damaging performance

A lower employee-cost ratio can result from better utilisation, but also from vacancies that delay service. Lower maintenance spending can improve this month’s ratio while increasing breakdown risk. Pair expense ratios with quality, delivery and capacity measures.

Set targets from the business’s economics and operating plan. External benchmarks can help only when cost definitions and business models are comparable. A premium service provider and a volume reseller may reasonably have very different selling and staffing ratios.

Finish each monthly review with the largest explainable movement, its rupee effect and a specific action. Expense ratios are valuable when they make the cost of serving customers clearer and help the owner improve that economics without undermining the service customers buy.

Sources and references

Prepared 25 October 2026. Numerical examples are illustrative. Check the provisions and effective dates relevant to your transaction.