# How to Calculate Difference of Two Values?

The difference between two values is known as subtraction. Being able to find the difference in values is a useful calculation when comparing results from two different periods. You can also use it...
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http://www.ehow.com/how_8520119_calculate-difference-two-values.html

## How to Calculate the Percentage of Difference Between Two Values?

The difference between two values can indicate many things, like the growth of a business or the shrinking of a waistline. But what if both values are equally important and neither is a product of ...
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http://www.ehow.com/how_8175079_calculate-difference-between-two-values.html

## How to Calculate RMS Values?

RMS, which stands for root mean square, is a method to average numbers. Unlike the standard arithmetic averaging method, the RMS averaging method requires that you average the square of each number...
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http://www.ehow.com/how_6461969_calculate-rms-values.html

## How to Calculate CV Values?

In statistics, CV or coefficient of variation is a measure of the variability of a sample dataset expressed as a percentage of the mean. It is calculated as the ratio of the standard deviation of t...
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http://www.ehow.com/how_6395229_calculate-cv-values.html

## How to Calculate pKa Values?

Many students often approach the concept of pKa with dread because it requires significantly more math than most other aspects of chemistry. However, students need to familiarize themselves with pK...
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http://www.ehow.com/how_6553412_calculate-pka-values.html