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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    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: 50 / 100 × 40 / 100 = 0.50 × 0.40 = 0.20 = 20 / 100 = 20%.

  3. On-base percentage - Wikipedia

    en.wikipedia.org/wiki/On-base_percentage

    In baseball statistics, on-base percentage ( OBP) measures how frequently a batter reaches base. An official Major League Baseball (MLB) statistic since 1984, it is sometimes referred to as on-base average ( OBA ), [a] as it is rarely presented as a true percentage .

  4. Duty cycle - Wikipedia

    en.wikipedia.org/wiki/Duty_cycle

    Duty cycle is commonly expressed as a percentage or a ratio. A period is the time it takes for a signal to complete an on-and-off cycle. As a formula, a duty cycle (%) may be expressed as: = % Equally, a duty cycle (ratio) may be expressed as: =

  5. Percentage point - Wikipedia

    en.wikipedia.org/wiki/Percentage_point

    A percentage point or percent point is the unit for the arithmetic difference between two percentages. For example, moving up from 40 percent to 44 percent is an increase of 4 percentage points (although it is a 10-percent increase in the quantity being measured, if the total amount remains the same). [1]

  6. Gross margin - Wikipedia

    en.wikipedia.org/wiki/Gross_margin

    Gross margin is expressed as a percentage. Generally, it is calculated as the selling price of an item, less the cost of goods sold (e.g., production or acquisition costs, not including indirect fixed costs like office expenses, rent, or administrative costs), then divided by the same selling price.

  7. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    as a percentage, the formula for which is which is equivalent to the tangent of the angle of inclination times 100. In Europe and the U.S. percentage "grade" is the most commonly used figure for describing slopes.

  8. Pythagorean expectation - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_expectation

    The formula is used with an exponent of 2.37 and gives a projected winning percentage. That winning percentage is then multiplied by 17 (for the number of games played in an NFL season from 2021), to give a projected number of wins. This projected number given by the equation is referred to as Pythagorean wins.

  9. Profit margin - Wikipedia

    en.wikipedia.org/wiki/Profit_margin

    It is calculated by finding the profit as a percentage of the revenue. [1] Profit Margin = 100 ⋅ Profit Revenue = 100 ⋅ ( Sales − Total Expenses ) Revenue {\displaystyle {\text{Profit Margin}}={100\cdot {\text{Profit}} \over {\text{Revenue}}}={{100\cdot ({\text{Sales}}-{\text{Total Expenses}})} \over {\text{Revenue}}}}

  10. Percentile - Wikipedia

    en.wikipedia.org/wiki/Percentile

    In statistics, a k-th percentile, also known as percentile score or centile, is a score below which a given percentage k of scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition).

  11. Coefficient of variation - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_variation

    Coefficient of variation. In probability theory and statistics, the coefficient of variation ( CV ), also known as normalized root-mean-square deviation (NRMSD), percent RMS, and relative standard deviation ( RSD ), is a standardized measure of dispersion of a probability distribution or frequency distribution.