Donald Martin owns a garage and is contemplating purchasing a tire retreading machine for $$18,820.$ After estimating costs and revenues, Donald projects a net cash inflow from the retreading machine of $$3,900$ annually for $7$ years. Donald hopes to earn a return of $9\%$ on such investments.

What is the present value of the retreading operation? $($For calculation purposes, use $5$ decimal places as displayed in the factor table provided, e$.$g$.5\mathrm{.}27541.$ Round answer to $2$ decimal places, e$.$g$.25\mathrm{.}25.)$

Present value $ $$

Should Donald purchase the retreading machine?

Donald $$ purchase the tire retreading machine.