Decide what result you mean
Clicks, enquiries, suitable conversations, accepted work and contribution answer different questions. A channel can lead on one and lose on another. Choose the decision first. If the question is where to invest the next marketing hour, a chart of lifetime website visits may be almost irrelevant.
A Pareto chart ranks categories by a measure such as frequency or cost and can show cumulative contribution. The chart does not require an exact 80/20 split. Nor does it tell you why the pattern exists. It makes the distribution visible so you can investigate it.
Worked example (illustrative): four acquisition routes
Consider these made-up figures over one comparable period:
| Route | All enquiries | Suitable enquiries | Acquired customers | Direct campaign cost |
|---|---|---|---|---|
| Search | 40 | 12 | 4 | $1,200 |
| Referrals | 15 | 12 | 6 | $300 |
| Social | 60 | 9 | 2 | $600 |
| Event | 10 | 5 | 2 | $800 |
Referrals produce 6 of 14 customers, about 43%, not 80%. Their recorded campaign cost per acquired customer is $50. But that excludes the relationship work behind the referrals. Before declaring them the cheapest route, estimate the time, partner effort and any fees involved. These numbers are fictional and not performance benchmarks.
Search may reach people you could not reach through existing relationships. The event may create opportunities with a longer buying cycle. Keep those differences visible rather than forcing every route into one simplistic league table.
Build the analysis honestly
Choose the period and use consistent definitions. Assign a primary source only when known. Keep multiple-touch and unknown-source notes. Rank the routes by the selected outcome and calculate each share of the total. Then compare effort and the quality of the resulting work.
Do not count the same customer twice in a total because they saw a video and later clicked an advertisement. You can record both interactions without pretending both independently caused the whole sale. Small samples should be reported as counts as well as rates.
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Reallocate in increments
Suppose a route looks promising. Ask whether it has room to expand, whether the next customers are likely to resemble the first and whether delivery can handle the work. The first five referrals may be unusually strong because they came from people who know you well. The next fifty may require a different process.
A sensible test might move a limited amount of effort away from a weak activity while protecting a small learning budget. Record what you will watch and what would make you reverse the change. Avoid shutting down all unfamiliar channels simply because the historical data favours what you have always done.
The useful 80/20 question
Ask: "Where is a disproportionate share of useful outcomes coming from, and what explains it?" That is better than asking which 80% of work you can immediately delete. Some low-volume activities support trust, service quality or future demand that a short-window report cannot capture.
The principle earns its place when it changes a decision using your records. It becomes a slogan when the ratio is imposed before looking at them.
Find the real concentration in your marketing
Use one row per source: label, suitable enquiries, marketing cost in AUD. These are fictional starting figures.
This calculation runs in your browser. Nothing entered here is sent to Greg or the website. Use anonymous labels. Results illustrate the stated assumptions, not a forecast or personal advice.
Your next action
Rank the sources of your last twenty suitable enquiries. Record known source, buying stage, outcome, direct cost and estimated effort. Calculate the concentration you actually observe. Choose one small reallocation to test and identify one valuable activity you should protect despite its low immediate volume.
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Lesson: The 80/20 principle in marketing: investigate where results come from. Please do not include confidential client, financial, health or staff information.
Questions this lesson answers
What is the 80/20 principle in marketing?
Rank marketing activities by a useful outcome and inspect the actual concentration, costs and repeatability. Do not assume an exact 80/20 distribution or treat the last recorded touch as proof of causation.
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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