Quip corporation wants to purchase a new machine for $300,000. management predicts that the machine will produce sales of $200,000 each year for the next 5 years. expenses are expected to include direct materials, direct labor, and factory overhead (excluding depreciation) totaling $80,000 per year. the firm uses straight-line depreciation with an assumed residual (salvage) value of $50,000. quip's combined income tax rate, t, is 40%. what is the estimated accounting (book) rate of return (arr) for the proposed investment, based on average investment? (round answer to nearest whole number/percentage.)