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The margin shown in a quotation is not necessarily the margin the business eventually collects. A better control is a deal-level margin waterfall: start with the quoted price, then deduct the final discount, unplanned freight, rework, credit-period cost and account service cost. The waterfall shows where value leaked and who must change the rule before the next deal.
This is useful for distributors, project suppliers and service contractors in Qatar and the Gulf when reported sales rise faster than cash or operating contribution. It is a management decision model, not a substitute for the company’s accounting policy or professional accounting advice.
Separate the written price from expected consideration
Begin with the original quotation and record every change through collection. The IFRS Foundation’s IFRS 15 overview explains that the transaction price is the consideration an entity expects to be entitled to, and that variable consideration must be estimated. A management waterfall should not duplicate the financial statements; it should make the commercial causes of the gap visible.
Use seven fields: quoted value, discount or rebate, unplanned fulfilment expense, returns and rework, credit-period cost, account cost-to-serve, and collected contribution. Keep each field mutually exclusive. If a site visit is already included in account service time, do not deduct it again as rework.
Worked example: a quoted 32% margin finishes lower
Assume a QAR 100,000 quotation and planned goods or delivery cost of QAR 68,000, producing a quoted margin of QAR 32,000. Negotiation adds a QAR 3,000 discount. Execution then requires QAR 2,000 of expedited freight, a QAR 1,500 corrective visit, and QAR 2,200 of account service capacity measured through the cost-to-serve model.
The customer pays after 60 days. For the decision model only, assume a 12% annual financing rate on the QAR 97,000 expected receipt. The period cost is approximately 97,000 × 12% × 60 ÷ 365 = QAR 1,913. Contribution after the listed items becomes QAR 21,387 rather than QAR 32,000: leakage of QAR 10,613. Contribution is about 22% of actual QAR 97,000 revenue, not 32%.
| Stage | QAR effect | Balance |
|---|---|---|
| Quoted margin | — | 32,000 |
| Final discount | -3,000 | 29,000 |
| Expedited freight | -2,000 | 27,000 |
| Corrective visit | -1,500 | 25,500 |
| Assumed credit-period cost | -1,913 | 23,587 |
| Account service cost | -2,200 | 21,387 |
These are teaching assumptions, not company data or a market financing rate. Replace them with the actual cost of capital and expense policy. Payment delay is not automatically a loss when the customer is dependable, and released capacity is not cash savings until it is redeployed or its cost changes.
Give every leak a decision owner
Classify each variance as an unpriced commercial promise, internal error, customer exception or financing cost. An unpriced promise calls for clear service options. Internal error needs process repair. An exception needs approval and a price before fulfilment. Credit duration needs a limit or milestone payment rather than collection activity after the invoice is late.
Do not use the waterfall only to blame sales. A discount can be sensible when it releases slow stock, and an additional visit can protect a valuable renewal. The exception must still be visible, with an owner and a documented reason, instead of disappearing inside average margin.
Measures that show real improvement
- Collected contribution as a percentage of actual revenue by deal.
- Percentage-point gap between quoted margin and collected contribution.
- Expedited freight and rework per QAR 100,000 of sales.
- Average collection days and the share exceeding agreed terms.
- Share of exceptions approved and priced before execution.
Compare deals within a similar segment and size. Do not mix a recurring annual contract with a one-off transaction, or load all onboarding cost onto the first order without noting future benefit. Also monitor major-customer concentration: one large low-contribution deal can combine margin weakness with dependency risk.
Run a four-deal pilot
- Select four closed deals of the same type, not only the best or worst.
- Rebuild each waterfall from quotation to receipt, with evidence for every deduction.
- Name the two largest leakage causes and their decision owners.
- Change one rule in new quotations, such as pricing expedited freight or requiring a milestone payment.
- After one month, compare contribution together with delivery reliability and customer experience.
The model fails when entries are unsupported estimates, costs overlap, or the team chases a better percentage at the customer’s expense. The practical decision is to locate the leak before cutting price or rejecting the account. Repair the controllable cause, reprice the promise, then decide which deal type deserves expansion.
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A practical deal-margin waterfall showing where B2B contribution falls between quotation and collection, with a worked QAR example.
