Article 7
1. Where, in the case of a product or group of products, a Member State does not calculate the average tax burden in accordance with Articles 2 to 6, that burden may be estimated at a standard rate corresponding to 100 %, 75 %, 50 % or 30 % of the standard rate of turnover tax, according to whether the factors and components of the product or group of products which may be taken into account at the final stage and are liable to the standard rate or to the increased rate of turnover tax represent 65 %, 50 %, 35 % or less than 35 %, respectively, of the selling price of the product or group of products before tax. 2. The burden thus estimated may not exceed the average tax burden which would result from applying Articles 2, 3, 4 and 6.