No excel please.

PROBLEM 4-7 Assume that a machine costing $300,000 and having a useful life of five years (with no salvage Analyzing Depreciation value) generates a yearly income before depreciation and taxes of $100,000. for Rates of Retum Required: Compute the annual rate of return on this machine (using the beginning-of-year book value as the base) for each of the following depreciation methods (assume a 25% tax rate): CHECK Year 2 return, SL 12.5%, a. Straight-line SYO: 7.5% b. Sum-of-the-years' digits PROBLEM 4-7 Assume that a machine costing $300,000 and having a useful life of five years (with no salvage Analyzing Depreciation value) generates a yearly income before depreciation and taxes of $100,000. for Rates of Retum Required: Compute the annual rate of return on this machine (using the beginning-of-year book value as the base) for each of the following depreciation methods (assume a 25% tax rate): CHECK Year 2 return, SL 12.5%, a. Straight-line SYO: 7.5% b. Sum-of-the-years' digits