Legend Service Center just purchased an automobile hoist for S33,700. The hoist has an 8-year life and an estimated salvage value of $3,640. Installation costs and freight charges were $3,550 and $820, respectively. Legend uses straight-line depreciation. The new hoist will be used to replace mufflers and tires on automobiles. Legend estimates that the new hoist will enable his mechanics to replace 6 extra mufflers per week. Each muffler sells for $72 installed. The cost of a muffler is $39, and the labor cost to install a muffler is $13. Compute the cash payback period for the new hoist. (Round answer to 2 decimal places, e.g. 10.50.) Compute the annual rate of return for the new hoist. (Round answer to 1 decimal place, e.g. 10.5.)