rational selection of an optimum design safety margin, Improvement of the configuration of the construction with _a decrease of their overall dimensions etc., Is Indicated by the factor "Change of construction and specifications of articles". The summary economic calculation effect of manufacturing and utilizing new machinery Is determined by the formula : E = p E c 2 n 2 where: 352 E Is summary calculation effect of scientific-technical c measures In the planned year; P -Increment of profit (reduction of prime cost> from 2 alI the measures In the plan of new machinery In the planned year; E -normative coefficient of effectiveness of the new n machinery <E • 0.15) n . 1 -capital Investments <expenditures) for all the 2 measures In the plan of new machinery When determining the summary economic effect Jn the composition of the capital Investments <expendJturet) of the manufacturer and consumers of machinery, the dfreet capite! Investments are considered as well as other •~pendltures for creating and utilizing machinery Irrespective of the sources for financing them. These expenditures Include: expenditures for sctentlflc•research and experimental design work, Including testing and field changes In the experimental prototypes {only for new machinery). If the results of scientific-research and experimental-design and proJecting work, associated with the creation of new machinery at the level of Inventions and discoveries. make It possible In the future to expand considerably the scope of their application, then only a part of the respective expenditures, determined by examination• Is referred to the stated measure concerning new machinery; expenditures for purchasing, dlsmantl lng, technical preparation, mastering of production; delivering, assembl lng, adJusting new machinery and -expenditures for replenishing turnover funds associated with the creation and uti I lzatton of new machinery; -the cost of production areas, other elements of the baste 
**Analysis**
The text appears to be discussing the economic benefits of introducing new machinery in an industrial setting, with a focus on calculating the summary economic effect of scientific-technical measures. The language used is technical and specific to the field of industry, with terms such as "capital Investments", "expenditures", and "scientific-research and experimental-design work". This suggests that the text is related to the field of industry and science and technology.

**Category**
Industry, Science and technology