Derek can deposit $13,031.00 on each birthday beginning with his 27.00th and ending with his 69.00th. What will the rate on the retirement account need to be for him to have $3,172,751.00 in it when he retires?

Answer format: Percentage Round to: 2 decimal places (Example: 9.24%, % sign required. Will accept decimal format rounded to 4 decimal places (ex: 0.0924))