Please help with this practice question.

Initially Kraft produces 30,000 boxes of macaroni each day at a total cost of $25,000, and Heinz produces 10,000 bottles of ketchup each day at a total cost of $20,000. Kraft then acquires Heinz and produces both 30,000 boxes of macaroni and 10,000 bottles of ketchup each day at a total cost of $35,000. Economies of scope have lowered Kraft's costs by what percentage? (Write answer out in percentage form to the tenths place (e.g. if your answer is 55.555%, write "55.6".\