X Company currently makes a part and is considering buying it next year from a company that has offered to supply it for $15.00 per unit. This year, total costs to produce 65,000 units were: Direct materials $390,000 Direct labor 325,000 Variable overhead 227,500 Fixed overhead 292,500 If X Company buys the part, $260,325 of the fixed overhead is unavoidable. The resources that will become idle if they choose to buy the part can be used to increase production of another product, resulting in additional total contribution margin of $15,000. The marketing manager estimates that demand next year will increase to 69,900 units. If X Company buys the part instead of making it, it will save.