The expected average rate of return for a proposed investment of $659,600 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total income of $183,440 for the 4 years is (round to two decimal places) a. 0.56% a. Ob. 6.95% Oc. 0.28% Od. 13.91%