Average Rate of Return The following data are accumulated by Watershed Inc. in evaluating two competing capital investment proposals: Project A Project z Amount of investment $96,000 $32,000 Useful life 4 years 9 years Estimated residual value 0 0 Estimated total income over the useful life $10,560 $14,400 Determine the expected average rate of retum for each project. Round your answers to one decimal place, Project A Project z