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  2. Relative change - Wikipedia

    en.wikipedia.org/wiki/Relative_change

    For example, we might want to calculate the relative change of −10 to −6. The above formula gives ⁠ (−6) − (−10) / −10 ⁠ = ⁠ 4 / −10 ⁠ = −0.4, indicating a decrease, yet in fact the reading increased. Measures of relative change are unitless numbers expressed as a fraction. Corresponding values of percent change would be ...

  3. Profit margin - Wikipedia

    en.wikipedia.org/wiki/Profit_margin

    Profit margin is calculated with selling price (or revenue) taken as base times 100. It is the percentage of selling price that is turned into profit, whereas "profit percentage" or "markup" is the percentage of cost price that one gets as profit on top of cost price. While selling something one should know what percentage of profit one will ...

  4. Amdahl's law - Wikipedia

    en.wikipedia.org/wiki/Amdahl's_law

    In computer architecture, Amdahl's law (or Amdahl's argument [1]) is a formula that shows how much faster a task can be completed when you add more resources to the system. The law can be stated as: "the overall performance improvement gained by optimizing a single part of a system is limited by the fraction of time that the improved part is ...

  5. Gross margin - Wikipedia

    en.wikipedia.org/wiki/Gross_margin

    Some retailers use margins because profits are easily calculated from the total of sales. If margin is 30%, then 30% of the total of sales is the profit. If markup is 30%, the percentage of daily sales that are profit will not be the same percentage. Some retailers use markups because it is easier to calculate a sales price from a cost.

  6. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    The percent value can also be found by multiplying first instead of later, so in this example, the 50 would be multiplied by 100 to give 5,000, and this result would be divided by 1,250 to give 4%. To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is:

  7. Return on investment - Wikipedia

    en.wikipedia.org/wiki/Return_on_investment

    Price–earnings ratio; Rate of profit; Rate of return (RoR), also known as 'rate of profit' or sometimes just 'return', is the ratio of money gained or lost (whether realized or unrealized) on an investment relative to the amount of money invested; Return on assets (RoA) Return on brand (ROB) Return on capital employed (ROCE) Return on capital ...

  8. Profitability index - Wikipedia

    en.wikipedia.org/wiki/Profitability_index

    Profitability index (PI), also known as profit investment ratio (PIR) and value investment ratio (VIR), is the ratio of payoff to investment of a proposed project.It is a useful tool for ranking projects because it allows you to quantify the amount of value created per unit of investment.

  9. Overall equipment effectiveness - Wikipedia

    en.wikipedia.org/wiki/Overall_equipment...

    Performance: speed at which the Work Center runs as a percentage of its designed speed. Quality: Good Units produced as a percentage of the Total Units Started. It is commonly referred to as the first pass yield (FPY). To calculate the Total Effective Equipment Performance(TEEP), the OEE is multiplied by a fourth component: