Choose the right starting group
A conversion rate needs a defined denominator. All website visits, all enquiries and qualified opportunities are different starting groups. State which one you use and the time period. Otherwise two people can report different rates while both calculations are arithmetically correct.
Track a cohort: the same group of opportunities from a defined starting period. Sales completed this month may have begun months ago. Dividing them by this month's new enquiries can produce a misleading picture when the sales cycle is long.
Follow the stages with evidence
Record enquiry received, fit checked, needs understood, proposal made, decision and handover. Adapt the stages to the business. At each stage, identify what evidence shows progress and what information is missing.
Do not count silence as rejection or optimism as commitment. Open cases need their own category. A smaller pipeline with reliable status can be more useful than a large list of names with no next action.
Worked example (illustrative): the conversion denominator
A January cohort contains 80 enquiries, 40 suitable opportunities, 20 proposals and 10 accepted projects after an appropriate observation period. Enquiry-to-sale conversion is 12.5%. Suitable-opportunity conversion is 25%. Proposal conversion is 50%.
All three describe different parts of the process. None identifies the cause of lost work on its own. Investigate why twenty suitable opportunities did not reach proposal and why ten proposals did not become accepted work. Some may have been correctly declined or still unresolved.
If the team improves proposal speed, watch scope quality and delivery capacity. Faster responses that create more rework are not an uncomplicated improvement.
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Find the smallest useful intervention
Review a sample of cases at the stage with the most avoidable waiting or uncertainty. Common tests include a clearer intake question, a named next-action owner, an agreed response standard or a proposal that answers the customer's actual decision.
Choose one change and state the mechanism. "A scope checklist should reduce repeated clarification because these five cases lacked the same information" is more testable than "the team needs to sell better".
Measure effect and trade-off
Record counts, rates and elapsed time. Include a limit such as contribution, complaint rate or scope errors. Use the same definitions before and after. Note changes in channel, customer mix and capacity that could explain a difference.
With small samples, treat the result as a learning signal rather than a proven causal effect. A test can justify continuing or refining the change without supporting a claim that it will work for every business.
Stop treating the funnel as a blame chart
A delay between stages often involves more than one team. Sales may wait for technical information. Operations may receive incomplete scope. Finance may need a price exception approved. Give the handover an owner and a clear input standard.
The purpose of the funnel is to make the work visible. Once the team can see where suitable opportunities stop progressing, it can choose an intervention with a reason. That is a stronger performance plan than increasing every activity target at once.
Look at where the enquiries stop
Use the same group of enquiries through all stages. Do not mix this month's enquiries with last month's sales.
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Your next action
Take one cohort of recent enquiries and record each stage reached. Calculate three conversion rates with explicit denominators. Separate open, lost and unsuitable cases. Investigate one repeated delay and design a change with an outcome measure and a limit.
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Lesson: Improving sales performance by finding where enquiries stop progressing. Please do not include confidential client, financial, health or staff information.
Questions this lesson answers
How can I improve my sales performance?
Define a comparable cohort, inspect progression and reasons for delay, then test one change at the stage you can influence. Track fit, contribution and delivery quality alongside sales.
Work out where your business is getting stuck
The free Growth Diagnostic asks ten questions across acquisition, conversion, relationships, delivery and commercial control. It gives you an area to investigate and three things you can do next.
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