Butter is usually packed by 2 sticks or 4 sticks to a box. If they allow you to divide the butter then it is just a matter of simple math. Since the price varies for butter I cannot give you an exact amount. If the butter comes from a box with 4 sticks, divide the total amount by 4 and round out for the price of 1 stick. Do the same thing if it is a box of 2. Divide the total by 2 and round out.