Instead of sorting by price could we have a compare by store.

For Example the list shows Tesco only but you can then see the same list at another supermarket to see if its cheaper to buy the full list from just one store rather than splitting it to multiple stores.

Most people go to one store only so it would be good to have a comparison by store rather than multiple stores.

As you can see in the attached it shows the cheapest at each individual items at each store rather than showing the full price of the whole list at the one store which you can compare to decide which store is cheapest for the whole list rather than the individual items.