The management of Ro Corporation is investigating automating a process. Old equipment, with a current salvage value of $21,000, would be replaced by a new machine. The new machine would be purchased for $420,000 and would have a 6 year useful life and no salvage value. By automating the process, the company would save $145,000 per year in cash operating costs. The simple rate of return on the investment is closest to (Ignore income taxes.): (Round your answer to 1 decimal place.)

Bayside coatings company purchased waterproofing equipment on january 2, 20y4, for $190,000. the equipment was expected to have a useful life of four years and a residual value of $9,000. instructions: determine the amount of depreciation expense for the years ended december 31, 20y4, 20y5, 20y6, and 20y7, by (a) the straight-line method and (b) the double-declining-balance method. also determine the total depreciation expense for the four years by each method. depreciation expense year straight-line method double-declining-balance method 20y4 $ $ 20y5 20y6 20y7 total $