Question 31 (1 point) A mining company will spend $28 million in order to exploit a low-grade placer deposit of gold ore. They estimate the deposit will produce profits of $6 million per year for six years. They calculate the net present value using an estimated cost of capital of 6%. What is the maximum amount by which the cost of capital can deviate from this estimate that still makes the decision to mine worthwhile? 1.60% O 1.66% 1.69% 1.72% 01.76%