How unit prices help you compare grocery costs
The Australian Competition and Consumer Commission (ACCC) states that unit prices help consumers compare prices and find the best value for money. By showing the cost per standard unit, such as per kilogram or per litre, unit prices allow shoppers to compare products of different sizes and brands on a like-for-like basis.

Rules about displaying unit prices
The ACCC also notes that there are rules about who must display unit prices, where, how, and for what products. These rules set out the obligations for certain retailers to show unit prices in a consistent manner, making it easier for consumers to identify the best value when shopping for groceries.