Contribution
How many points of headline inflation come from one category.
2 min read · Reviewed September 2026
In plain words
Contribution answers "of the 4% headline inflation, how much came from food?" It equals the category's weight in the basket multiplied by its own inflation rate. Contributions from all categories sum to the headline rate.
Frequently asked questions
What is a contribution to inflation?
A contribution measures how many percentage points one category added to the headline rate. It equals that category's weight multiplied by its inflation rate. All contributions sum to the headline figure.
Further reading