What is the discount rate at which the following cash flows have a NPV of $0 ? Answer in \%, rounding to 2 decimals. Year 0 cash flow =107,000 Year 1 cash flow =37,000 Year 2 cash flow =32,000 Year 3 cash flow =31,000 Year 4 cash flow =42,000 Year 5 cash flow =30,000 Year 6 cash flow =33,000