Need all detailed steps and calculations, and NO EXCEL Solution please.

We believe we can sell 90,000 home security devices per year at $150 per piece. They cost $130 to manufacture (variable cost). Fixed production costs run $215,000 per year. The necessary equipment costs $785,000 to buy and would be depreciated at a 25 percent CCA rate. The equipment would have a zero-salvage value after the five-year life of the project. We need to invest $140,000 in net working capital up front; no additional net working capital investment is necessary. The discount rate is 19 percent, and the tax rate is 35 percent. What do you think of the proposal