Exercise 16-9 Flounder Service Center just purchased an automobile hoist for $31,300. The hoist has an 8-year life and an estimated salvage value of $3,960. Installation costs and freight charges were $3,510 and $700, respectively. Flounder uses straight-line depreciation. The new hoist will be used to replace mufflers and tires on automobiles. Flounder estimates that the new hoist will enable his mechanics to replace 6 extra muffiers per week. Each muffler sells for $71 installed. The cost of a muffler is $37, and the labor cost to install a muffler is $12 Compute the cash payback period for the new hoist. (Round answer to 2 decimal places, e.g. 10.50) Cash payback period years Compute the annual rate of return for the new hoist. (Round answer to 1 decimal place, e.g. 10.5.) Annual rate of return