Symon Meatsis looking at a new sausage system with an installed cost of $495,000. This cost will be depreciated straight-line to zero over the project's five-year life, at the end of which the sausage system can be scrapped for $73,000. The sausage system will save the firm $175,000 per year in pretax operating costs, and the system requires an initial investment in net working capital of $32,000. If the tax rate is 34 percent and the discount rate is 10 percent, what is the NPV of this project?

Below is my method can you find the flaw?

175,000 - 99,000 = 76,000 - 25,840 = 50,160 + Dep = 149,160

Year 0

(495,000) + 32,000 = (463,000)

Year 1

149,160 / 1.1 = 135,600

Year 2

149,160 / 1.1^2 = 123,272

Year 3

149,160/ 1.1^3 = 112,066.16

Year 4

149,160/ 1.1^4 = 101,878.29

Year 5 (73,000 * 1 - .35)

149,160/1.1^5 = 92,617.199 - 32,000 + 47,450 = 108,067

When solved for NPV = 5070.05