Annual inflation eased to 3.4% in July. That does not bring the old grocery bill back.

What the July release says

Consumer prices rose 0.1% in July on a seasonally adjusted basis, the Bureau of Labor Statistics reported August 12. Over the preceding 12 months, the all-items Consumer Price Index for All Urban Consumers rose 3.4%, compared with 3.5% for the year ending in June.

The July figures also show why one headline cannot describe every purchase. Food prices rose 0.1% during the month while the energy index fell 1.5%.

Over the year, food was up 3.0% and energy was up 14.7%. The monthly and annual figures answer different questions.

A smaller increase can still leave a larger bill

Imagine a purely illustrative basket costing $100. After a 10% increase it costs $110.

If its price rises another 2%, it costs $112.20. Inflation has slowed, but the basket still costs more.

These are arithmetic examples, not measurements of Gretna store prices.

That distinction helps explain why reports of cooling inflation can feel disconnected from household budgets. A lower rate of increase does not reverse earlier increases.

An individual price can fall even while the overall index rises, and the reverse can also happen.

Why your household may feel a different rate

The CPI measures changes in a representative basket of consumer goods and services. BLS groups purchases into categories such as housing, food, transportation and medical care.

The national index reflects the spending patterns of its reference population, rather than the exact expenses of any one family.

A household making long drives may pay more attention to fuel, while a renter may be more affected by rent. A family with a new expense also faces a budget change that is not simply a change in the price of a constant basket.

Keep receipts and compare equivalent purchases if you want to understand your own changes.

Check the adjustment and the time period

BLS uses seasonal adjustment to remove recurring patterns associated with factors such as production cycles, holidays and seasonal sales. That helps analysts compare successive months.

Annual changes commonly quoted from the release use unadjusted figures.

Before repeating a percentage, identify the measure, the period and whether it is adjusted. For household planning, compare the categories you actually buy, then check quantities and service terms.

A smaller package or different insurance coverage can complicate a simple comparison of the amount paid.

The July release is a dated national snapshot. It does not establish September prices at a local supermarket or the cost of a particular family’s next month.