The following data are accumulated by Watershed Inc. in evaluating two competing capital investment proposals: Amount of investment Useful life Estimated residual value Estimated total income over the useful life. Project A Project Z $68,000 $80,000 4 years 5 years 0 0 $8,840 $23,000 Determine the expected average rate of return for each project. Round your answers to one decimal place. Project A Project Z < % %