A store will cost $$750,000$ to open. Variable costs will be $59\%$ of sales and fixed costs are $$130,000$ per year. The investment costs will be depreciated straight$-$line over the $18$ year life of the store to a salvage value of zero. The opportunity cost of capital is $5\%$ and the tax rate is $40\%.$

Find the operating cash flow each year if sales revenue is $$600,000$ per year.

Using an operating cash flow of $86,266\mathrm{.}67,$ calculate the Net Present Value. Should the store be opened?

Find the net present value break$-$even level of sales revenue.