What are the specific calculation methods of cost method, income method and market method in patent assets evaluation? Please elaborate with examples.

The formula of cost method is the sum of all acquisition costs and evaluation values = cost 1+ cost 2+ cost N+ expected profit-tax and fee market method is to select comparative cases to quantify comparison factors and modify the evaluation value of reference object = reference object x adjustment coefficient 1x adjustment coefficient 2x adjustment coefficient 3 income amount obtained by income method A income years N discount rate R three-parameter evaluation value =(a/r). × [1-1(1+r) n] Every appraisal company has its own calculation method and system, which is a trade secret ... You can't see the detailed calculation process. What I told you above is also the principle, and the real calculation is much more complicated. The following are the requirements of the relevant methods mentioned in the intangible evaluation criteria. Article 26 Evaluation of registered assets. We should analyze the applicability of three basic asset appraisal methods, namely, income method, market method and cost method, according to the appraisal object, value type, data collection and other related conditions, and appropriately select one or more asset appraisal methods. Twenty-seventh certified asset appraisers shall collect the relevant income, cost and expense data of patented products when using the income method to evaluate patented assets. A certified asset appraiser shall make necessary analysis, judgment and adjustment on the future implementation and income forecast of the patent provided by the entrusting party or interested parties, and be convinced of the rationality of the relevant forecast. Certified asset appraisers should choose the appropriate income caliber according to the specific situation of patent assets. Article 28 When using the income method to evaluate patent assets, a certified asset appraiser shall reasonably determine the income period of patent assets according to the technical life, technical maturity, legal life, patented technical product life and contract term related to patent assets. Article 29 When using the income method to evaluate patent assets, a certified asset appraiser shall comprehensively consider the interest rate, investment return, capital cost on the benchmark date, technology, operation, market, capital and other factors in the patent implementation process, and reasonably determine the discount rate. The discount rate of patent assets should be different from that of enterprises or other assets; The discount rate should be consistent with the expected income. Article 30 A certified asset appraiser shall collect enough comparable transaction cases when using the market method to evaluate patent assets. When analyzing the comparability of transaction cases, certified asset appraisers should consider the characteristics of the transaction assets, transaction time, restrictive conditions, the relationship between the two parties, the existing conditions of the buyer, profitability, competitiveness, technical level, maturity, remaining legal protection years and remaining economic life, risk degree, transfer or use of patented assets, and whether the implementation of patented assets involves other patented assets. Thirty-first certified asset appraisers should analyze, compare and adjust various factors of the differences between patent assets and comparable transaction cases when using the market method to evaluate patent assets. Thirty-second certified asset appraisers shall reasonably determine the replacement cost of patent assets when using the cost method to evaluate patent assets. Replacement costs include reasonable costs, profits and related taxes and fees. When determining the replacement cost of patent assets, the certified asset appraiser shall reasonably determine the related expenses such as R&D personnel, management personnel, equipment and buildings required for the formation of patent assets. Thirty-third certified asset appraisers shall reasonably determine the depreciation when using the cost method to evaluate patent assets. Article 34 When a certified asset appraiser uses various appraisal methods to appraise the same patent asset, he shall make a comparative analysis of the obtained preliminary value conclusions and form a reasonable appraisal conclusion.