The Ste. Marie Division of Pacific Media Corporation just started operations. It purchased depreciable assets costing $$42\mathrm{.}0$ million and having a four$-$year expected life, after which the assets can be salvaged for $$8\mathrm{.}4$ million. In addition, the division has $$42\mathrm{.}0$ million in assets that are not depreciable. After four years, the division will have $$42\mathrm{.}0$ million available from these nondepreciable assets. This means that the division has invested $$84\mathrm{.}0$ million in assets with a salvage value of $$50\mathrm{.}4$ million. Annual depreciation is $$8\mathrm{.}4$ million. Annual operating cash flows are $$21\mathrm{.}5$ million. In computing ROI, this division uses end$-$of$-$year asset values in the denominator. Depreciation is computed on a straightline 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$.,32\mathrm{.}1).)$

$\backslash$table$[[,$ROI$],[,$Net Book Value,Gross Book Value$],[$Year $1,,\%,,\%$