On the 18 th July 2020,1 purchased a 2.45%,21 st August 2030 CGB at a yield of 1.346%. then on the 16 th of September 2021 on sold it when the yield was 1.228%. Assuming the reinvestment rate was 1.25% pa simple interest, what was the holding period yield for this investment? Express your answer as a percentage to 3 decimal places. eg not 0.0625 but 6.253