How does the change in the current yield to maturity from 6 per cent to 5 per cent affect the duration of th coupon bond in question 12 ? (0.5 mark) Formula sheet E=DGAP[R/(1+R)]AMVE=DGAP(A)R(1+R)MD=D/(1+R) How does the change in the current yield to maturity from 6 per cent to 5 per cent affect the duration of th coupon bond in question 12 ? (0.5 mark) Formula sheet E=DGAP[R/(1+R)]AMVE=DGAP(A)R(1+R)MD=D/(1+R)