Blue Spruce Doggy, Inc. produces and sells corn dogs. The corn dogs are dipped by hand. Austin Beagle, production manager, is considering purchasing a machine that will make the corn dogs. Austin has shopped for machines and found that the machine he wants will cost $203,900. In addition, Austin estimates that the new machine will increase the company's annual net cash flows by $31,400. The machine will have a 12year useful life and no salvage value. Click here to view PV tables. (a) Calculate the cash payback period. (Round answer to 2 decimal places, e.g. 15.21.)