THE SHORT ANSWER
Unit-economics claims need defined costs, customer groups and observed results. Acquisition cost, contribution payback and lifetime-value estimates are different measures. Cash-conversion ratios describe averages, not a cash forecast. Reconcile the inputs and disclose exclusions; no ratio automatically earns a sale premium.
State what acquisition cost includes
Define the customers counted as new, the attribution window and the acquisition spending included. Distinguish new accounts from returning customers and record shared marketing or sales costs that cannot be cleanly assigned. Channel figures should reconcile to the total rather than counting the same customer in several channels.
Original hypothetical: $10,000 of defined acquisition spending for 20 genuinely new customers produces a $500 acquisition cost per customer. That does not mean all selling costs are included or that the customers will stay. SEC issuer guidance on defined metrics is a useful presentation reference, rather than a private-sale mandate.
(SEC Release 33-10751: KPI definitions and calculation)Measure contribution before assuming lifetime value
If those hypothetical customers each produce a steady $100 monthly contribution after the defined incremental service costs, simple undiscounted contribution payback is five months. The assumption excludes fixed overhead, taxes, financing, reinvestment and the difference between invoicing and collection. If contribution falls or customers leave earlier, that payback is not achieved.
Show actual cohorts and cancellations before projecting a customer lifespan. Revenue over a supposed lifetime is different from profit or discounted cash value. Explain which costs are deducted and which future periods are estimated. Avoid importing a software-company lifetime-value threshold into a business with irregular purchasing and limited customer histories.
Build a cash-cycle worksheet with matched inputs
| Illustrative annual input | Defined calculation | Result |
|---|---|---|
| Average receivables $90,000; credit sales $900,000 | Receivables ÷ credit sales × 365 | 36.5 collection days |
| Average inventory $100,000; cost of sales $600,000 | Inventory ÷ cost of sales × 365 | About 60.8 inventory days |
| Average trade payables $60,000; credit purchases $600,000 | Payables ÷ credit purchases × 365 | 36.5 payment days |
On these definitions, collection days plus inventory days less payment days is about 60.8 days. Use actual credit purchases for the payment calculation; cost of sales is not always the same amount. Seasonal balances, deposits, cash sales and unusual purchases can make a simple average misleading.
Reconcile the averages to actual cash timing
A shorter calculated cycle is not automatically better if it results from unpaid suppliers, stock shortages or unrealistic receivable balances. Review aging, stock availability, customer payment terms and supplier obligations. Keep any purchase-agreement working-capital peg separate from an operating liquidity forecast.
Financial due diligence includes cash-flow, working-capital and customer analytics.
(RSM: financial due diligence)Use the working-capital guide and a dated cash schedule to investigate the actual operating requirement. Present the worksheets and exclusions along with the KPI, rather than promising a 10–40% valuation uplift from a lower acquisition cost or a negative cash cycle.
Owner questions
Is revenue-based lifetime value the same as customer profit?
No. Cost treatment, time horizon and discounting differ; label the calculation and assumptions.
Does five-month contribution payback mean all cash is recovered by month five?
Only under the stated assumptions. Collection delays and excluded costs can change cash recovery.
Can cash-cycle averages determine opening working capital exactly?
No. Actual timing, seasonality, balance quality and purchase-agreement definitions require separate analysis.
Sources and review scope
Source review completed . The sources below support the identified concepts or rules; they do not validate hypothetical amounts or a valuation of your business.
- SEC Release 33-10751: KPI definitions and calculation
2020 issuer MD&A guidance on definitions, assumptions, methodology changes and controls. Used as a presentation reference; not a private small-business sale disclosure mandate or industry benchmark.
- RSM: financial due diligence
QoE, working capital and cash-flow analysis; not an audit opinion or a fee benchmark.
Confirm tax, legal, accounting and lending applications with the relevant professionals. Historical market observations describe the stated period and reported sample.
This is educational material. Industry figures and program rules can change; check the original sources and your advisors before applying them to a transaction. Calculator scenarios are not appraisals, lending decisions, or offers.
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