Suppose AAAA Inc. currently is issuing a bond. The bond has a face value of $1,000 and matures in 58 years. The bond makes no payments for the first 16 years, then pays $41.25 every quarter over the subsequent 24 years, and finally pays $92.50 every half a year over the last 18 years. Two years ago an investor obtained the bond preemption by paying the firm $430, and now she just gone one bond from the firm with no further charge. What is the effective yearly required return rate (rounded to 0.01%)

Must use PVIFA formula to solve.