Current Attempt in Progress

Ivanhoe Company is considering the purchase of a new machine. The invoice price of the machine is $$86,100,$ freight charges are estimated to be $$3,990,$ and installation costs are expected to be $$5,670.$ The annual cost savings are expected to be $$21,000$ for $10$ years. Calculate the cash payback period. $($Round answer to $2$ decimal places, e$.$g$.15\mathrm{.}25.)$

Cash payback period $$ years