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  2. Lang factor - Wikipedia

    en.wikipedia.org/wiki/Lang_factor

    The Lang Factor is an estimated ratio of the total cost of creating a process within a plant, to the cost of all major technical components. It is widely used in industrial engineering to calculate the capital and operating costs of a plant. [1][2][3] The factors were introduced by H. J. Lang and Dr Micheal Bird in Chemical Engineering magazine ...

  3. United States Consumer Price Index - Wikipedia

    en.wikipedia.org/wiki/United_States_Consumer...

    The Consumer Price Index was initiated during World War I, when rapid increases in prices, particularly in shipbuilding centers, made an index essential for calculating cost-of-living adjustments in wages. To provide appropriate weighting patterns for the index, it reflected the relative importance of goods and services purchased in 92 ...

  4. Consumer price index - Wikipedia

    en.wikipedia.org/wiki/Consumer_price_index

    A consumer price index (CPI) is a price index, the price of a weighted average market basket of consumer goods and services purchased by households. Changes in measured CPI track changes in prices over time. [1] The CPI is calculated by using a representative basket of goods and services. The basket is updated periodically to reflect changes in ...

  5. Sunk cost - Wikipedia

    en.wikipedia.org/wiki/Sunk_cost

    Sunk cost. In economics and business decision-making, a sunk cost (also known as retrospective cost) is a cost that has already been incurred and cannot be recovered. [1][2] Sunk costs are contrasted with prospective costs, which are future costs that may be avoided if action is taken. [3] In other words, a sunk cost is a sum paid in the past ...

  6. Buncombe commissioners consider Waste Pro contract, new ...

    www.aol.com/buncombe-commissioners-consider...

    Inflation has grown by 19% from January 2020 to present, according to the Bureau of Labor Statistics Consumer Price Index calculator. Waste Pro prices have grown by just over 17% during that time ...

  7. List of price index formulas - Wikipedia

    en.wikipedia.org/wiki/List_of_price_index_formulas

    Price index numbers are usually defined either in terms of (actual or hypothetical) expenditures (expenditure = price * quantity) or as different weighted averages of price relatives ( ). These tell the relative change of the price in question. Two of the most commonly used price index formulae were defined by German economists and ...

  8. Chemical plant cost indexes - Wikipedia

    en.wikipedia.org/wiki/Chemical_plant_cost_indexes

    A cost index is the ratio of the actual price in a time period compared to that in a selected base period (a defined point in time or the average price in a certain year), multiplied by 100. Raw materials, products and energy prices, labor and construction costs change at different rates, and plant construction cost indexes are actually a ...

  9. Cost of electricity by source - Wikipedia

    en.wikipedia.org/wiki/Cost_of_electricity_by_source

    The levelized cost of electricity (LCOE) is a metric that attempts to compare the costs of different methods of electricity generation consistently. Though LCOE is often presented as the minimum constant price at which electricity must be sold to break even over the lifetime of the project, such a cost analysis requires assumptions about the value of various non-financial costs (environmental ...

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