A company's management is considering investing in a project with an expected life of 4 years. It has a positive net present value of $180,000 when cash flows are discounted at 8% per annum. The project's cash flows include a cash outflow of $100,000 for each of the four years. No tax is payable on projects of this type.

The percentage increase in the annual cash outflow that would cause the company's management to reject the project from a financial perspective is, to the nearest 0.1%?