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 $64,000 $56,000 Useful life 4 years 9 years Estimated residual value 0 0 Estimated total income over the useful life $5,120 $21,420 Determine the expected average rate of return for each project. Round your answers to one decimal place. Project A Project 2 % %