Your purchase notes
Keep the details in one place.
Look at the dressing sizes inside the box, then the pack count. An assorted pack may contain only a few of the size you need.
Find the pad dimensions as well as the outer strip size. Note how many of each dressing the pack contains; a large headline count can hide a small selection of useful sizes.
Compare the cost per unit
Choose one consistent unit: pieces, kilograms, litres or prepared litres, as appropriate. Divide total cost by the quantity. Do not compare unlike product types on price alone.