Stores are required by law to provide the price per unit/weight/volume alongside the price, so you can directly compare the price of a pint of beer to the 0.33 liter bottle without calculating anything.
I just checked and REWE only lets you sort by absolute price. But honestly, you can compare prices so much better on their website than in a physical supermarket already [0].
I just checked and REWE only lets you sort by absolute price. But honestly, you can compare prices so much better on their website than in a physical supermarket already [0].
[0] https://www.rewe.de/shop/c/frisches-obst/?sorting=PRICE_DESC You have to enter a random zip code eg 20249