In a make-or-buy decision, relevant costs are: manufacturing costs that will be saved. the purchase price of the units. O opportunity costs. O all of these costs are relevant in a make- or-buy decision. Current Attempt in Progress Which one of the following is an important assumption that is made when considering the decision to accept an order at a special price? Overall economic growth will continue at historical rates. The firm will continue to receive similar orders in the future. The firm is not currently operating at full capacity. There are no mixed costs