Project Water has an initial cost of $639,700 and projected cash flows of $288,000, $319,000, and $165,000 for Years 1 to 3, respectively. Project Aqua has an initial cost of $411,200 and projected cash flows of $186,000, $178,000, and $145,000 for Years 1 to 3, respectively. What is the incremental IRR of these two mutually exclusive projects?