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Technical Studies Reference

Rate of Change - Percentage

This study calculates and displays the Percent Change of the data specified by the Input Data Input over a period specified by the Length Input.

Let \(X\) be a random variable denoting the Input Data, and let \(X_t\) be the value of the Input Data at Index \(t\). Let the Inputs Length and Multiplication Factor be denoted as \(n\) and \(v\), respectively. Then we denote the Rate of Change - Percentage at Index \(t\) for the given Inputs as \(\%Diff_t(X,n,v)\), and we compute it for \(t \geq n\) as follows.

\(\displaystyle{\%Diff_t(X,n,v) = \frac{X_t - X_{t - n}}{X_{t - n}}\cdot v}\)

This study displays a true Percent Change only if \(v = 100\).



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*Last modified Friday, 02nd February, 2018.