Will appreciate any help to show the steps for this questions, I kept getting NPV = 340,652.88 and was wondering what went wrong. Thanks!

Unanswered Question 2 0/2 pts Suppose you are a diversified rare metal business and you are offered a gold mining project. You have already spent $21,203 on gold mining equipment, and will need to spend $46,160 on maintaining existing equipment with or without this project. You will also need to invest an additional $48,765 as working capital for this project. The cost of this gold mining project is $155,113. The project generates a cash flow of $49,514 in the first year which grows at 4.4% annually for 15 years. The required return for a similar gold mining business is 8.1%, and the hurdle rate for your entire business is 20%. What is the NPV of this project? (Round your answer to nearest whole number) You Answered Correct Answer 355,814 margin of error +/-1