Your firm is scheduled to spend $500,000 on one-time repairs at t=0. Due to cash flow problems, your firm is considering forgoing these repairs. If you do, you expect you will need to spend $700,000 at t=1 on new equipment (i.e., you save $500,000 at t=0 but you need to spend $700,000 at t=1). Compute the IRR for this problem. For what range of cost of capital is forgoing repairs at t=0 a good decision?