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Larkin Company incurs a total cost of $480, 000 in producing 30, 000 units of a part needed in the assembly of its major product. The part can be purchased from an outside supplier for $11 per unit. A related cost study indicates that the total cost of the part includes fixed costs equal to 60% of the variable costs involved. Compute the increase (decrease) in net income if a. Larkin buys the part and assume it cannot otherwise use the released capacity. b. Larkin buys the part and assume the released capacity could be used in a project that would produce $42, 000 of contribution margin