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 $32,000 4 years $52,000 9 years 0 0 $4,800 $26,910 Determine the expected average rate of return for each project. Round your answers to one decimal place. Project A % Project Z %