Materials used by the Instrument Division of Ziegler Inc. are currently purchased from outside suppliers at a cost of $1,350 per unit. However, the same materials are available from the Components Division. The Components Division has unused capacity and can produce the materials needed by the Instrument Division at a variable cost of $900 per unit. a. If a transfer price of $1,000 per unit is established and 75,000 units of materials are transferred, with no reduction in the Components Division's current sales, how much would Ziegler Inc.'s total operating income increase