You own a building that is expected to pay annual cash flows forever. If the building is worth $870000, the cost of capital is 8.0%, annual cash flows are expected with the first one due in one year and equal to $64000, and all subsequent cash flows are expected to grow annually by a constant rate,then what is the expected annual growth rate of expected cash flows?(Round the value to 100th decimal and Please enter the value only without converting it to a decimal format. If the answer is 8.55%, enter 8.55)