This paper deals with development of prices of chosen commodity and service in the period 1994 – 2014. As the commodity there was chosen a white wine, and a glass of a white wine as the service. There was found a strong linear dependence of both prices, and that is why only price of service was put on the analysis. Subsequently there was analysed a price of service in dependence on a month wage and inflation. Using the time correlation it was found out that the price of service does not depend on the average month wage change nor on the inflation. Thus, the price is determined by mutual relation of the offer to the demand.