Denny Corporation is considering replacing a technologically obsolete machine with a new state-of-the-art numerically controlled machine. The new machine would cost $300,000 and would have a fifteen-year useful life. Unfortunately, the new machine would have no salvage value The new machine would cost $50,000 per year to operate and maintain, but would save $91,000 per year in labor and other costs. The old machine can be sold now for scrap for $30,000. The simple rate of return on the new machine is closest to ignore income taxes) (Round your answer to 1 decimal place.) Multiple Choice 7008 30.33% 15 56% 7.78%