The Street Division of Labrosse Logistics just started operations. It purchased depreclable assets costing $$39\mathrm{.}5$ million and having a

four$-$year expected life, after which the assets can be salvaged for $$7\mathrm{.}9$million. In addition, the division has $$39\mathrm{.}5$million In assets that

are not depreclable. After four years, the division will have $$39\mathrm{.}5$ million avallable from these non depreclable assets. This means that

the divislon has invested $$79$ million In assets with a salvage value of $$47\mathrm{.}4$ million. Annual operating cash flows are $$12\mathrm{.}7$ million. In

computing ROI, this division uses beginning$-$of$-$year asset values in the denominator. Depreclatlon 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.

Note: Enter your answers as a percentage rounded to $2$ decimal place $($L$.$e$.,32\mathrm{.}10).$