The Ste. Marie Division of Pacific Media Corporation just started operations. It purchased depreciable assets costing $55 million and having a four-year expected life, after which the assets can be salvaged for $11 million. In addition, the division has $55 million in assets that are not depreciable. After four years, the division will have $55 million available from these nondepreciable assets. This means that the division has invested $110 million in assets with a salvage value of $66 million. Annual depreciation is $11 million. Annual operating cash flows are $26 million. In computing ROI, this division uses end-of-year asset values in the denominator. Depreciation is computed on a straight-line basis, recognizing the salvage values noted. Ignore taxes. Assume that the company uses a 12 percent cost of capital.

a. Compute residual income, using net book value for each year.

b. Compute residual income, using gross book value for each year.