You are given the following information on a proposed “cigar tax” in the Republic of Panatela. Panatela collects no other specific excise taxes, and all other government revenues come from a neutral lump-sum tax. (A lump-sum tax is a tax of a fixed sum paid by all people regardless of their circumstances.) Assume further that the burden of the tax is fully borne by consumers. Now consider the following data: 

• Cigars consumed before the tax: 18 million 

•  Cigars consumed after the tax: 14 million 

•  Average price per cigar: $20 (not including the tax) 

•  Tax rate: 25 percent 

Estimate the size of the excess burden of the tax. What is the excess burden as a percentage of revenues collected from the tax?