Tiffs Treats is considering the purchase of a new cookie dough-making machine. The new machine should reduce their operating expenses by $20,000 each year for 10 years. The old ice cream machine is now 5 years old and has 10 years of scheduled life remaining. It was originally purchased for $45,000 and has a current market value of $20,000. What purchase price makes the NPV of the project zero if you estimate that the discount rate is 10%? (There are no taxes or inflation.)