Average Rate of Return 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 $44,000 $44,000 4 years 9 years 0 0 $5,280 $19,800 Determine the expected average rate of return for each project. Round your answers to one decimal place. Project A Project Z X % X %