YHJ is considering an investment in a project that will cost $20 million.

YHJ is considering an investment in a project that will cost $20 million. Annual fixed costs will be $12 million per year, excluding depreciation. Annual sales are forecast at 5 million units, with a contribution per unit of $8. After five years the equipment will be worn out and YHJ will have to spend $50 million on disposal costs. The discount rate is 10%.

Calculate the sensitivity of the net present value of this project to a 20% increase in the disposal costs.