Please include the formula being used for the problem as well as what to plug into the financial calculator and for what buttons in order to get the NPV.

Thank you for your time and help it is truly appreciated!

Patty's Pie Shop is considering installing an ice cream machine. Doing so will produce an operating cash flow of $14,600 a year for 7 years. The initial fixed asset investment (for the ice cream machine and related installation costs) in the project will be $48,900. The net aftertax salvage value is estimated at $12,000 and will be received during the last year of the project's life. What is the net present value of the project if the required rate of return is 12 percent