The document compares the prices of 11 common food items sold by 3 Romanian supermarkets (Penny, XXL, and Lidl) in December 2016. It finds that Penny had the highest overall cost at 59.66 RON, while Lidl had the lowest at 18.23 RON. It also notes that if Penny had sold eggs, their lowest priced item in 2015, at 0.39 RON each, they would have had the best overall offer of 60.05 RON. Price comparisons are provided for specific items like water, flour, oil, rice, and more. Lidl did not offer some items like eggs, rice, or margarine that month.