Prices fell 1.0% in August and rose 1.1% in September. The annual figure of 5.2% is describing a Ghana that no longer exists.
September inflation was 5.2% year on year, up from 5.0% in August and down from 9.4% a year earlier. Month on month, prices rose 1.1% in September after falling 1.0% in August. The low point this year was 3.2% in March. Government Statistician Dr Alhassan Iddrisu said the rise reverses August's decline and that while inflation has nearly halved over the year, the direction over the last two months is upward: "Both are facts and both matter."
A year on year rate averages the last twelve months, so a good first half keeps flattering the number long after conditions change. The monthly series is what tells you about now, and it has swung 2.1 percentage points in one month. If September's monthly pace continued for a year it would compound to roughly 14%. Nobody expects that, but it is the pace your costs moved at last month, and it is the pace your suppliers experienced. Meanwhile every customer, landlord and employee who reads the news will anchor on 5.2% and judge your price increases against it. That gap between the number people quote and the number your business feels is the single most expensive misunderstanding available to a Ghanaian SME right now.
Businesses that reprice monthly rather than annually. Anyone holding inventory bought in August, when prices fell. Suppliers with cost-plus contracts that adjust on actual input costs.
Businesses on annual price lists or fixed-price contracts signed in the first half. Anyone whose pricing formula uses published year on year inflation. Employers facing wage conversations anchored on 5.2%.
Stop pricing off the annual rate and start tracking your own monthly input cost, measured the way the statisticians do it, against last month rather than last year. Take your five largest cost lines, write down what each cost in August and what it costs now, and work out the percentage. That number is your real inflation and it will almost certainly be well above 5.2%. Use it internally for pricing decisions and keep the 5.2% figure for conversations where the other party has already seen it. The two numbers serve different purposes and confusing them is how margins disappear quietly.