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In any quantitative science, the terms relative change and relative difference are used to compare two quantities while taking into account the "sizes" of the things being compared, i.e. dividing by a standard or reference or starting value. The comparison is expressed as a ratio and is a unitless number. By multiplying these ratios by 100 they can be expressed as percentages so the terms percentage change, percent(age) difference, or relative percentage difference are also commonly used. The terms "change" and "difference" are used interchangeably. Relative change is often used as a quantitative indicator of quality assurance and quality control for repeated measurements where the outcomes are expected to be the same. A special case of percent change (relative change expressed as a percen

Attributes	Values
rdfs:label	Taux d'évolution (fr) Relative change and difference (en) Относительное изменение (ru)
rdfs:comment	Относи́тельное измене́ние — безразмерная величина, число, показывающее во сколько раз изменилась некоторая величина относительно первоначального её значения. Измеряется в долях (например, «величина изменилась в 2 раза»), процентах («увеличилась на 100 %»), при малых значениях изменения часто применяются миллионные доли (части на миллион, ppm). Так же называется метод математического преобразования абсолютных значений временного ряда. Используется при . При этом ряду ставится в соответствие ряд: где: — абсолютное значение ряда в точке , — относительное изменение в точке . (ru) In any quantitative science, the terms relative change and relative difference are used to compare two quantities while taking into account the "sizes" of the things being compared, i.e. dividing by a standard or reference or starting value. The comparison is expressed as a ratio and is a unitless number. By multiplying these ratios by 100 they can be expressed as percentages so the terms percentage change, percent(age) difference, or relative percentage difference are also commonly used. The terms "change" and "difference" are used interchangeably. Relative change is often used as a quantitative indicator of quality assurance and quality control for repeated measurements where the outcomes are expected to be the same. A special case of percent change (relative change expressed as a percen (en) En mathématiques, le taux d'évolution permet de quantifier l'évolution d'une grandeur numérique entre deux dates. Si cette grandeur passe d'une valeur de départ VD à une valeur d'arrivée VA, le taux d'évolution est donné en pourcentage par la formule : Note : pour ne pas avoir de problème de signe inversé dans certains cas, il faut utiliser la valeur absolue pour le dénominateur. Le taux d'évolution réciproque se calcule avec la même formule en intervertissant les valeurs et . qui permet alors de calculer l'une des deux valeurs connaissant l'autre par la relation . (fr)
dcterms:subject	Measurement Numerical analysis Subtraction Statistical ratios
Wikipage page ID	10202429 (xsd:integer)
Wikipage revision ID	1123481216 (xsd:integer)
Link from a Wikipage to another Wikipage	Neper Approximation error Percentage Number Quantities Measurement Commutative Equality (mathematics) Logarithmic scale Quality assurance Percentage point Errors and residuals in statistics Absolute value Numerical analysis Fraction (mathematics) North Carolina State University Numerator Subtraction Floating point Relative standard deviation Quality control Theory of relativity Statistical ratios Absolute difference Natural logarithm Ratio Programming language Unitless Quantitative science Limit from above Relative difference
Link from a Wikipage to an external page	https://trepo.tuni.fi/handle/10024/66781 http://www.physics.ncsu.edu/courses/pylabs/205N_208N_MeasurementandErrors.pdf%7C https://www.etla.fi/wp-content/uploads/A4.pdf%7Clanguage=en https://www.etla.fi/wp-content/uploads/dp681.pdf http://www.phy.ilstu.edu/slh/Percent%20Difference%20Error.pdf https://web.archive.org/web/20100615192147/http:/www.physics.ncsu.edu/courses/pylabs/205N_208N_MeasurementandErrors.pdf
sameAs	Relative change and difference Relative change and difference Relative change and difference Relative change and difference Relative change and difference Relative change and difference
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has abstract	En mathématiques, le taux d'évolution permet de quantifier l'évolution d'une grandeur numérique entre deux dates. Si cette grandeur passe d'une valeur de départ VD à une valeur d'arrivée VA, le taux d'évolution est donné en pourcentage par la formule : Note : pour ne pas avoir de problème de signe inversé dans certains cas, il faut utiliser la valeur absolue pour le dénominateur. Il est souvent distingué d'un simple taux par l'indication du signe « + » lorsqu'il est positif. Il n'y a pas de risque de confusion lorsqu'il est négatif, c'est-à-dire si la valeur d'arrivée est inférieure à la valeur de départ. Il peut aussi dépasser +100 % si la valeur d'arrivée est supérieure au double de la valeur de départ. Le taux d'évolution réciproque se calcule avec la même formule en intervertissant les valeurs et . Ces taux ne dépendent pas de l'unité de mesure avec laquelle la grandeur est exprimée et restent constants pour une grandeur qui évolue suivant une progression géométrique. Le taux d'évolution permet aussi de calculer le coefficient multiplicateur entre les deux valeurs considérées. Si , ce coefficient multiplicateur est donné par la formule : qui permet alors de calculer l'une des deux valeurs connaissant l'autre par la relation . (fr) In any quantitative science, the terms relative change and relative difference are used to compare two quantities while taking into account the "sizes" of the things being compared, i.e. dividing by a standard or reference or starting value. The comparison is expressed as a ratio and is a unitless number. By multiplying these ratios by 100 they can be expressed as percentages so the terms percentage change, percent(age) difference, or relative percentage difference are also commonly used. The terms "change" and "difference" are used interchangeably. Relative change is often used as a quantitative indicator of quality assurance and quality control for repeated measurements where the outcomes are expected to be the same. A special case of percent change (relative change expressed as a percentage) called percent error occurs in measuring situations where the reference value is the accepted or actual value (perhaps theoretically determined) and the value being compared to it is experimentally determined (by measurement). The relative change formula is not well-behaved under many conditions and various alternative formulas, called indicators of relative difference, have been proposed in the literature. Several authors have found log change and log points to be satisfactory indicators, but these have not seen widespread use. (en) Относи́тельное измене́ние — безразмерная величина, число, показывающее во сколько раз изменилась некоторая величина относительно первоначального её значения. Измеряется в долях (например, «величина изменилась в 2 раза»), процентах («увеличилась на 100 %»), при малых значениях изменения часто применяются миллионные доли (части на миллион, ppm). Так же называется метод математического преобразования абсолютных значений временного ряда. Используется при . При этом ряду ставится в соответствие ряд: где: — абсолютное значение ряда в точке , — относительное изменение в точке . (ru)
prov:wasDerivedFrom	wikipedia-en:Relative_change_and_difference?oldid=1123481216&ns=0
page length (characters) of wiki page	23969 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Relative_change_and_difference
is Link from a Wikipage to another Wikipage of	Power law Percent discrepancy Percentage Δ% List of numerical analysis topics Percent Difference %CH %ch Symmetric mean absolute percentage error Ghulam Dastagir Alam Percentage point Absolute number Fold change Relative percent difference International System of Units Relative change List of statistics articles Relative difference Percent change Percent difference Percent error Percentage change Percentage difference Percentage increase % difference %difference Log change Log point
is Wikipage redirect of	Percent discrepancy Δ%

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