Why is buying something with lower cost per ounce somehow cheaper or a better deal than buying something with a higher cost per ounce, even if the total price is higher for the lower cost per ounce product?

Question

Why is buying something with lower cost per ounce somehow cheaper or a better deal than buying something with a higher cost per ounce, even if the total price is higher for the lower cost per ounce product?

In:

Answer 1

Because you get more *of* it. (price per unit) * (number of units) = total cost. If something has a cheaper price per unit but costs more overall, there’s really only one place left it can be reconciled.