assume a project has a sales quantity of 9800 units, plus or minus 5 percent and a sales price of $74 a unit, plus or minus 1 percent. the expected variable cost per unit is $11 plus or minus 3 percent and the expected fixed costs are $290,000 plus or minus 2 percent. the annual depreciation expense is $68,000. the tax rate is 34 percent. what is the operating cash flow under the best case scenario?