++++ Common Customs Tariff - Customs value - Transaction value - Determination - Parties to the contract of sale established in the Community - Not material - Successive sales at different prices - Choices open to importer - Demurrage charges - Included in the cost of transport - "Buying commission" paid by the buyer to the seller - Included in the transaction value - Quantity of goods unloaded smaller than quantity purchased, without affecting stipulated purchase price - Not material ( Council Regulation No 1224/80, Arts 3(1 ) and 8(1)(e ); Council Directive 79/695, Art . 8(1 ) )