one-half of the traceable fixed manufacturing overhead relates to supervisory salaries and the remainder relates to depreciation of equipment with no salvage value. if the company chooses to buy this component part from a supplier, then the supervisor who oversees its production would be discharged. if the company begins buying the part from a supplier, it can use freed up capacity to produce and sell 2,350 more units of another product that earns a contribution margin per unit of $7.50. what is the financial advantage (disadvantage) of buying 10,000 units from the supplier?