The Ste. Marie Division of Pacific Media Corporation just started operations. It purchased depreciable assets costing $47.5 million and having a four-year expected life, after which the assets can be salvaged for $9.5 million. In addition, the division has $47.5 million in assets that are not depreciable. After four years, the division will have $47.5 million available from these nondepreciable assets. This means that the division has invested $95.0 million in assets with a salvage value of $57.0 million. Annual depreciation is $9.5 million. Annual operating cash flows are $20.5 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.

Required:

a. & b. Compute ROI, using net book value and gross book value for each year. (Enter your answers as a percentage rounded to 1 decimal place (i.e., 32.1).)