The headline inflation number is an average across everything a household buys, which means it describes almost no business accurately. The useful part of an inflation release is the component breakdown, where transport, food, and specific categories within food are reported separately and frequently move in opposite directions to each other and to the headline.
A release showing fruit prices falling year on year while meat rises sharply, in the same month, is the clearest possible illustration of why the average is not the answer.
Find the components that match your cost base
A butcher, a transport operator and a clothing retailer face entirely different inflation. Identify the two or three components that dominate your costs and track those, because the headline figure will mislead you in whichever direction your own inputs are moving.
Annual and monthly changes answer different questions
The month-on-month change tells you what is happening now. The year-on-year change tells you what customers have absorbed over twelve months. Pricing decisions should reference the annual figure, since that is the comparison customers make.
A component can rise monthly and still be cheaper than last year
Where a category increases sharply in a month while remaining below its level a year earlier, a supplier quoting an increase is describing the monthly move and the customer is thinking about the annual one. Knowing both numbers is what makes that negotiation winnable.
The target range is what drives rate decisions
A central bank with a stated inflation target responds to where inflation sits within that band and where it expects it to go. Inflation comfortably inside the range with risks flagged means rates are likely to hold, which is the practical consequence for anyone borrowing.
Read the release, not the headline
The full consumer price release published by Statistics South Africa breaks inflation down by category and by province. Any single line in it is more useful to a specific business than the national average that gets reported.
Frequently asked questions
Why is headline inflation unhelpful to a business?
It averages everything households buy, while a specific business faces the movement in two or three components that may move opposite to the average.
Should you use monthly or annual figures?
Monthly for what is happening now, annual for pricing decisions, since the year-on-year change is the comparison customers actually make.
How can a price rise and still be cheaper than last year?
A category can increase sharply within a month while remaining below its level twelve months earlier, which matters in supplier negotiations.
Why does the inflation target matter?
Because a central bank responds to where inflation sits in its target band, which determines whether interest rates hold or move.
Where should the numbers come from?
The full consumer price release with its category and provincial breakdowns, rather than the national headline reported in coverage.
Further reading
Originally published in December 2017. Updated September 2026 into guidance on reading an inflation release rather than reporting one month’s figure.
