A project has annual cashflows of Sh 30,000 and an initial cost of Sh 150,000. The useful life of the project is 10 years. The cashflows can further be broken as follows: Sh Revenue 375,000 Variable costs 300,000 Fixed costs 30,000 Depreciation 15,000 345,000 Before tax profit 30,000 Tax (50%) 15,000 After tax profits 15,000 Add back depreciation 15,000 Net annual cashflows 30,000 Cost of capital is 10% compute the level of fixed cost above which the NPV is negative.