a sm323 project team is currently planning to make the plastic part they need by leasing a large injection molding machine at a cost of $10,000 per year. they estimate that other fixed costs for space and indirect labor will total an additional $10,000 per year. if direct labor and materials costs $0.25 per part and they forecast an annual demand of 50,000 parts, what price would a supplier have to quote for them to switch to a buy decision?