So I have the answer for this question, however, I'm confused where did those numbers in red boxed came from?

Additional Questions - Liabilities On 1 January 2018, Orange Ltd issued $10 million in 6-year debentures that pay interest each six months at a coupon rate of 8% per annum. At the time of issuing the securities, the market requires a rate of return of 6% per annum. Interest expense is determined using the effective interest method Required: a) Determine the issue price of the debentures. Show your working