A corporation uses net present value techniques in evaluating its capital investment projects. The company is considering a new equipment acquisition that will cost P100,000, fully installed, and have a zero salvage value at the end of its five-year productive life. The corporation will depreciate the equipment on a straight-line basis for both financial and tax purposes. The corporation estimates P70,000 in annual recurring operating cash income and P20,000 in annual recurring operating cash expenses. The corporation's desired rate of return is 12% and its effective income tax rate is 30%. What is the net present value of this investment on an after-tax basis?