A project with a life of $6$ years is expected to provide annual sales of $$380,000$ and costs of $$269,000.$ The project will require an investment in equipment of $$670,000,$ which will be depreciated on a straight$-$line method over the life of the project. You feel that both sales and costs are accurate to $+/15$ percent. The tax rate is $21$ percent. What is the annual operating cash flow for the best$-$case scenario?