Pappys Potato has come up with a new product, the Potato Pet (they are freeze-dried to last longer). Pappys paid $120,000 for a marketing survey to determine the viability of the product. It is felt that Potato Pet will generate sales of $835,000 per year. The fixed costs associated with this will be $204,000 per year, and variable costs will amount to 20 percent of sales. The equipment necessary for production of the Potato Pet will cost $865,000 and will be depreciated in a straight-line manner for the 4 years of the product life (as with all fads, it is felt the sales will end quickly). This is the only initial cost for the production. Pappys has a tax rate of 23 percent and a required return of 13 percent. Calculate the payback period, NPV, and IRR. (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16. Enter your IRR answer as a percent.)

Please provide equations and don't use excel so i can see the steps on how to find it as well as the equations needed, Thank you!