The following data are accumulated by Watershed Inc. in evaluating two competing capital investment proposals:

Project A Project Z
Amount of investment $36,000 $60,000
Useful life 4 years 7 years
Estimated residual value 0 0
Estimated total income over the useful life $3,240 $15,750
Determine the expected average rate of return for each project. Round your answers to one decimal place.

Project A %
Project Z %