The value of a bond other than a plain par bond on a date is its present value on that date. The present value of a bond is computed under the economic accrual method taking into account all the unconditionally payable payments of principal, interest, and fees for a qualified guarantee to be paid on or after that date and using the yield on the bond as the discount rate, except that for purposes of section 1.148-6(b)(2) (relating to the universal cap), these values may be determined by consistently using the yield on the issue of which the bonds are a part. To determine yield on fixed yield bonds, see paragraph (b)(1) of this section. The rules contained in paragraphs (b)(2) and (b)(3) of this section apply for this purpose. In the case of bonds described in paragraph (b)(2)(ii) of this section, the present value of those bonds on any date is computed using the yield to the final maturity date of those bonds as the discount rate. In determining the present value of a variable yield bond under this paragraph (e)(2), the initial interest rate on the bond established by the interest index or other interest rate setting mechanism is used to determine the interest payments on that bond.