What is the relationship between incoterms and prices on the commercial invoice?

Exporters and importers use Incoterms very often on their of the daily language, as a delivery term is one of the key elements of international trade transactions. 

Almost every sales contract or proforma invoice contains an incoterms clause such as FOB New York Port, Incoterms 2010, CIF Dammam Port, Saudi Arabia, Incoterms 2010 etc. 

Furthermore, incoterms and prices shown on the commercial invoices have strict relationship. 

Delivery places of the goods, the party who pays for the freight costs and insurance premium are the main incoterms related determinants of the prices.

Today I would like to explain the relationship between incoterms and prices on the commercial invoice