Carla Vista Corp. management is considering purchasing a machine that will cost $117,250 and will be depreciated on a straight-line basis over a five-year period. The sales and expenses (excluding depreciation) for the next five years are shown in the following table. The company's tax rate is 34 percent. Carla Vista will accept all projects that provide an accounting rate of return (ARR) of at least 45 percent. (a1) Calculate accounting rate of return. (Round answer to 1 decimal place, e.g. 15.2\%.) Accounting rate of return