Talkindustries makes cellular phones, and it is thinking about purchasing (rather than producing) one of the parts-used in these phones: IITalk opts to purchase, the thachine that is now used to produce the part can instead be used to manufacture a new part expected to Benerate a total annual contribution margin of $134,500. This machine originally cost $200,000 when purchased one year ago, In this scenario. thes $134,500 represents an opportunity cost the 5200,000 represents a variable cost the $200,000 represents an opportunity cost. the $134.500 represents a yariable cost