Today is 1 July 2021, William plans to purchase a corporate bond with a coupon rate of j2 = 4.3% p.a. and face value of 100. This corporate bond matures at par. The maturity date is 1 January 2024. The yield rate is assumed to be j2 = 4.6% p.a. Assume that this corporate bond has a 3.3% chance of default in any six-month period during the term of the bond. Assume also that, if default occurs, William will receive no further payments at all. Calculate the purchase price for 1 unit of this corporate bond.