The computation of the annual gross volume of sales of the
enterprise for purposes of section 7(b)(3) is made ``exclusive of excise
taxes.'' It will be noted that the excise taxes excludable under section
7(b)(3) are not, like those referred to in section 3(s)(1) and section
13(a)(2), limited to those ``at the retail level which are separately
stated.'' Under section 7(b)(3), therefore, all excise taxes which are
included in the sales price may be excluded in computing the annual
gross volume of the enterprise.