a project with a life of $6$ years is expected to provide annual sales of $340,000$ and costs of $237,000.$ the project will require an investment in equipment of $610,000,$ 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?