Is the interest of special bond funds total or used amount?

the interest of special bond funds is the total amount. According to the relevant public information, the actual interest rate of bond investment is based on the total amount of actually invested funds, that is, the total amount of actually invested funds divided by the face value of bonds. The actual interest rate is calculated by the actual investment of investors, and the interest of special bonds refers to the interest rate paid by the seller (the institution that issues special bonds) to investors, that is, the reward obtained by bonds.