In computing the net interest cost under Section 16754 of the Government Code, the committee may determine that interest shall be computed either from the date of sale or from the date of the bonds or from the last preceding interest payment date to the respective maturity dates of the bonds then offered for sale at the coupon rate or rates specified in the bid, such computation to be made on a 360-day year basis, and the committee shall make appropriate provision therefor in the form of notice of sale of the bonds.