Gandolfi Construction Company purchased a CAT $336$DL earth mover at a cost of $$455,000$ in January $2022.$ The company's

estimated useful life of this heavy equipment is $10$ years, and the estimated salvage value is $$88,000.$

Assume that Gandolfi Construction Company calculated depreciation expense for the CAT $336$DL earth mover on the straight$-$line

method and reported $$525,600$ of net income for the year ended December $31,2022.$ The company's average total assets for $20$

were $$3,650,000.$

Required:

a$.$ Calculate Gandolfi's ROI for the year ended December $31,2022.$

b$.$ Calculate what Gandolfi's ROI would have been for the year ended December $31,2022,$ had the company used the double$-$

declining$-$balance depreciation method for the CAT $336$DL earth mover. Ignore the effects of income taxes.

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Required A

Calculate Gandolfi's ROI for the year ended December $31,2022.$