Stellar Plastics is analyzing a proposed project with annual depreciation of $19,500 and a tax rate of 34 percent. The company expects to sell 12,000 units, plus or minus 5 percent. The expected variable cost per unit is $3.20 plus or minus 4 percent, and the expected fixed costs are $30,000 plus of minus 2 percent. The sales price is estimated at $7.50 a unit, plus or minus 4 percent. What is the operating cash flow for a sensitivity analysis using total fixed costs of $31,000