Following representatives of the traditional big four supermarkets being hauled in front of the Commons business select committee to be grilled about the rising prices of food and fuel, new data produced for Retail Week by Walnut Unlimited shows customers are increasingly demanding answers too.

Of 2,001 respondents surveyed, 75% said they strongly agreed that supermarkets have been profiteering during this period of high inflation – compared with just 70% for banks and not far behind the 81% for electricity companies.