A firms products are sold for $80 each. The fixed costs (non-depreciation) are $1,000 per year and the variable costs per unit are 70% of the selling price. The initial investment of $3,000 will be depreciated straight-line over its useful life of six years to a final value of zero, and the discount rate is 10%. The firms tax rate is 30%. Calculate the NPV break-even level of sales.