The expected average rate of return for a proposed investment of $659,500 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total income of $208,720 for the 4 years is (round to two decimal places) a. 15.824 th 0.32% (5. 7.91% d. 0.67% The expected average rate of return for a proposed investment of $659,500 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total income of $208,720 for the 4 years is (round to two decimal places) a. 15.824 th 0.32% (5. 7.91% d. 0.67%