Value-added of Industry refers to the final results of the industrial production of industrial enterprises in money terms during the reference period. Industrial value-added can be calculated by two approaches: the production approach, i.e. gross industrial output value minus intermediate input plus value-added tax, and the income approach, i.e. income for various factors used in the course of production, including depreciation of fixed assets, remuneration of laborers net of production tax, and operating surplus.