Average Rate of Return The following data are accumulated by Lone Peak Inc. In evaluating two competing capital investment proposals: 3D Printer Truck Amount of investment $68,000 $28,000 Useful life 4 years 7 years Estimated residual value Estimated total income over the useful life $9,520 $10,290 Determine the expected average rate of return for each proposal. If required, round your answers to one decimal place 3D Printer % Truck 0