This invoice often requires detailed breakdowns (see bottom of form opposite) of the cost of the goods into raw materials, labour, to processing in the factory, freight, insurance and packing. It has to be signed officially by the exporters or the Chamber of Commerce.
The main idea is to prevent exporters from giving false declarations of the value of goods. For instance an exporter might make an agreement with importer to give only half the value of the goods so as to reduce the importers Naturally the details on all invoices for one consignment must be the same.