UK grocery inflation rises to 2.5% in four weeks to 4 October

UK supermarket prices rose 2.5% year-on-year in the four weeks to 4 October, up from 2.3%, according to Worldpanel by Numerator. Take-home sales grew 1.0% over the same period. The gap suggests volumes under pressure as shoppers pay more for less, a dynamic to watch into Halloween and year-end.