Exeter Division of Wetherby Labs acquired an asset with a cost of $$800,000$ and a four$-$year life. The cash flows from the asset,

considering the effects of inflation, were scheduled as follows:

The cost of the asset is expected to increase at a rate of $5$ percent per year, compounded each year. Performance measures are

based on beginning$-$of$-$year gross book values for the investment base. Ignore taxes.

Required:

a$.$ What is the ROI for each year of the asset's life, using a historical cost approach?

b$.$ What is the ROI for each year of the asset's life if both the investment base and depreciation are determined by the current cost of

the asset at the start of each year?

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