A store owner sells soda in cases of cans and in bottles. One case of soda contains 24 cans and costs $8.64. Each can in the case contains 12 ounces of soda. One bottle of soda costs $1.60 and contains 32 ounces. What is the difference in cost between 1 ounce of soda in a bottle and 1 ounce of soda in a can?