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在对某长输管道工程项目的三个设计方案分别进行投资、成本、收入及税金等数值估算后， 编制出现金流量表。用“投资回收期法”、“净现值法”、“净现值率法”对三个方案优选。其结果三种方法都选第Ⅱ方案最优。第Ⅱ方案投资回收期８５２年， 净现值１９ ５３７ 万元， 净现值率１１５。为长期投资决策工作提供了可靠的依据。
In the long-distance pipeline project after the three design options for investment, cost, income and taxes and other numerical estimates, the preparation of a cash flow statement. Use “payback period method”, “net present value method”, “net present value rate method” for three programs optimization. The results of the three methods are selected Ⅱ optimal plan. The investment return period of the Ⅱ plan was 8 52 years, with a net present value of 195.37 million yuan and a net present value rate of 1 15. For long-term investment decision-making provides a reliable basis.