Thirty per cent of what?
The first question sounds basic. It matters.
Is that revenue, customer count, orders, recurring contracts or cash collected? Are you comparing a full year with a full year? Did an acquisition or price increase change the number? Was the earlier period unusually weak?
A percentage is a summary. You still need to know what happened underneath it.
Check the work behind the increase
Growth rate equals the change divided by the starting amount. Revenue rising from $100,000 to $130,000 is 30% growth. Revenue rising from $1,000 to $1,300 is also 30%. The capacity, risk and commercial significance may be completely different.
For a business with no revenue in the starting period, a percentage growth calculation is not meaningful. Report the actual change instead.
A startup's appropriate pace depends on its model and evidence. A repeatable digital subscription and a specialist service with limited delivery hours do not have the same operating constraints. A statistical definition of a high-growth enterprise is also not a personal target. One OECD-Eurostat convention uses average annualised growth above 20% over three years and at least ten employees at the starting point. Other measures and statistical series differ.
An illustrative record month
Imagine a business with monthly revenue of $100,000 and direct delivery costs of $60,000. It has $40,000 left before overhead and other expenses.
Next month, revenue reaches $130,000. Direct costs reach $91,000 because the additional work uses expensive contractors and needs rework. The amount left before overhead is $39,000.
Revenue rose 30%. Direct costs rose more quickly. Contribution fell by $1,000, before considering any added overhead. This does not prove expansion was wrong. It means the owner needs an explanation before calling it a better month.
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Cash timing changes the decision
Now suppose the extra customers pay sixty days after completion, while contractors need payment within fourteen days. The business must fund the gap. A profitable job can still create a cash requirement before the money arrives. Cash-flow planning should reflect the timing of receipts and payments, not just an expected annual profit.
Build a dated view of the extra work. Include deposits actually agreed, costs when due and realistic collection assumptions. Show a delayed-payment scenario. Do not count a new facility or investor payment until it is genuinely available.
Check customers and people too
Ask whether the increase changed delivery reliability, complaints, cancellations or the hours needed from key staff. A month can meet a revenue target by borrowing time and goodwill from the next month. That is not a repeatable plan.
Also check who supplied the growth. A large one-off customer can create a concentration that the headline hides. A price increase may improve the business even if units stay flat. A deliberate reduction in unsuitable work may be sensible despite lower revenue.
Decide what the right growth looks like
Set conditions rather than a percentage alone. For example: target work from a defined customer group, retain a minimum contribution per job, keep agreed delivery dates and fund the payment gap. Those are planning conditions, not guarantees.
At the review, compare the whole set. When one measure improves and another deteriorates, make the trade-off explicit. The team needs to know what takes priority before they promise the next customer a date.
Check the contribution, not just the sales figure
Change the fictional example to compare current pricing with a proposed discount. Keep all amounts on the same GST basis.
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Your next action
Compare two equivalent periods. Calculate revenue growth, contribution before overhead and customer concentration. Add a dated cash view for the proposed extra work. Write the conditions that must hold before you expand further.
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Two questions before you move on
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Lesson: Is 30% growth good? Evaluate growth rate, costs, capacity and cash. Please do not include confidential client, financial, health or staff information.
Questions this lesson answers
What is a good growth rate for a startup?
There is no universal good startup growth rate. Judge pace against customer evidence, economics, funding needs and delivery capability.
What is considered a high growth startup?
High-growth definitions depend on the source. A named statistical threshold describes a defined population and period, not a recommended target for every startup.
Is 30% revenue growth good?
Thirty per cent revenue growth may be attractive, but only after checking contribution, cash, capacity and customer outcomes.
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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