4 19 RAM Corporation recently accepted an investment opportunity that requires a $400,000 cash investment in an asset with a useful life of 20 years. The investment has a payback period of 8 years and the asset has no salvage value. The asset is depreciated using the straight-line method. What is the accounting rate of return on RAM'S investment? 8.67% 0 7.50% 5.0096 15.67% None of the above