The article considers general issues of formation and development of theoretical and methodological aspects of assessment of the trade services development system in the context of socio-economic transformations. In the course of the presentation of the work, the main elements of assessment of the trade services development system are summarized and structured, its functions are systematized, the factors of its development are studied, as well as the role of assessment of the trade services development system in the formation of a platform for sustainable trade development and the national economies that form it. 

The article considers general issues of formation and development of theoretical and methodological aspects of evaluation of the system of development of trade services in the conditions of socio-economic transformations. In the course of the presentation of the work, the main elements of evaluation of the system of development of trade services are generalized and structured, its functions are systematized, the factors of its development are studied, as well as the role of evaluation of the system of development of trade services in formation of the platform of sustainable development of trade and national economies forming it.

This article notes the problems in the field of trade today. Economists' approaches to the concept of economic efficiency are analyzed. 8 key indicators of economic efficiency presented in foreign sources were analyzed on the example of a trading company. Based on the analysis of sources, economic efficiency indicators are divided into five groups and a system of 27 indicators has been developed. The implementation of these proposals is an important factor in finding opportunities to increase the economic efficiency of commercial enterprises.