For the following questions, please use a transaction of 2022 June, 6% coupon rate Commonwealth Government Security (CGS), with a 6% coupon.

Assume the par value is 100, and YTM is 5% P.A.

Please keep 4 decimal places:

1. If the transaction date is today, calculate the price of the bond (Note: 2020 is a leap year)?

2. Assume you bought this CGS on 15 June 2018 (immediately after the previous coupon payment) for $115, and the CGS was sold to Jack for $110 on 15June 2020 (after you receive coupon payment). Coupons can be reinvested at the YTM rate, how much is your total return per year? 

3. Assume after the 15 June 2021, in the market, a similar one-year CGS yield decreases by 2%, calculate the modified duration for such CGS.